ORD - LHR

£177 Find Cheap Flights from Chicago to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Heathrow departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to London.
In the last 7 days, travellers have searched 41,299,237 times on KAYAK, and here's why:

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap Flight Deals from Chicago to London Heathrow Airport (ORD-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Chicago to London Heathrow Airport that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Chicago to Heathrow

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Chicago to Heathrow.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
19:40 - 16:00ORD-LHR
14h 20m1 stop
06:40 - 17:50LHR-ORD
17h 10m1 stop
£389Scandinavian Airlines
Find Deal
Sat, 1 Feb - Mon, 3 Feb
19:40 - 18:50ORD-LHR
17h 10m2 stops
10:20 - 17:50LHR-ORD
13h 30m1 stop
£391Scandinavian Airlines
Find Deal
Sat, 1 Feb - Mon, 3 Feb
22:20 - 12:10ORD-LHR
7h 50mdirect
07:30 - 17:50LHR-ORD
16h 20m1 stop
£507Finnair
Find Deal
Mon, 28 Apr - Fri, 9 May
16:27 - 08:35ORD-LHR
11h 08m1 stop
07:30 - 17:50LHR-ORD
16h 20m1 stop
£511Finnair
Find Deal
Wed, 26 Mar - Wed, 2 Apr
17:00 - 06:50ORD-LHR
7h 50mdirect
15:45 - 19:45LHR-ORD
9h 00mdirect
£515British Airways
Find Deal
Mon, 3 Mar - Wed, 12 Mar
17:20 - 09:20ORD-LHR
10h 00m1 stop
15:45 - 18:45LHR-ORD
9h 00mdirect
£516Iberia
Find Deal
Wed, 12 Feb - Wed, 19 Feb
16:55 - 06:50ORD-LHR
7h 55mdirect
14:25 - 17:00LHR-ORD
8h 35mdirect
£516Iberia
Find Deal
Tue, 22 Apr - Tue, 13 May
17:50 - 07:55ORD-LHR
8h 05mdirect
13:45 - 16:15LHR-ORD
32h 30m1 stop
£521United Airlines
Find Deal
Wed, 12 Feb - Mon, 17 Feb
17:50 - 07:55ORD-LHR
8h 05mdirect
08:55 - 16:15LHR-ORD
13h 20m1 stop
£522United Airlines
Find Deal
Wed, 26 Feb - Fri, 7 Mar
21:45 - 11:30ORD-LHR
7h 45mdirect
11:00 - 13:55LHR-ORD
8h 55mdirect
£526British Airways
Find Deal
Mon, 20 Jan - Tue, 28 Jan

Flights from Chicago to Heathrow - Travel Insights & Trends

Get data-powered insights and trends into flights from Chicago to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chicago to London Heathrow Airport?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to London Heathrow Airport on a Wednesday and more expensive on a Sunday. On your return trip to Chicago, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Chicago O'Hare Intl Airport to London Heathrow Airport is February, where tickets cost £526 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £901 and £798 respectively.

Can I save money by flying with a stopover from Chicago O'Hare Intl Airport to London Heathrow Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £400 on average.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Chicago O'Hare Intl Airport to London Heathrow Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know - Cheap tickets from Chicago to London Heathrow Airport

Low season

February

High season

August

Cheapest flight

£177
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from Chicago to London Heathrow Airport

When to book flights from Chicago to Heathrow

Are your dates flexible? Find out the best times to travel from Chicago to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to London Heathrow Airport flights

  • Can I get a nonstop flight from Chicago (ORD) to Heathrow (LHR)?

    Yes. British Airways, Finnair, and American Airlines operate several nonstop flights between ORD and LHR per day. Generally, flights tend to depart either around 8 am or around 5 pm. KLM Royal Dutch Airlines, Delta, United, American, and Air Canada operate flights with two stops, with layovers in many cities, including Montreal (YUL), Detroit (DTW), Minneapolis (MSP), and Dublin (DUB).

  • How do I get from LHR to London city center on public transportation?

    To get to London from the airport, go to terminals 1, 2, or 3’s train station. From there, you can catch a train to Paddington Station in London, a primary London station where you can catch other trains, the subway, buses, or taxis. You can also catch a bus from Heathrow’s Central Bus Station. At Heathrow, terminals 2 and 3 have subway stations that can get you to the city center of London. Shuttles and taxis are options as well, but more expensive than a train, the subway, or a bus.

  • If I have an early flight from ORD, are there hotels near or in the airport where I could stay the night before I fly?

    The luxurious Hilton Chicago O’Hare Airport is a hotel that is actually inside ORD, in Terminal 2. Along with their various king-size room offerings, this hotel has allergy-free rooms, accessible rooms, business doubles with two double beds, and family suites. For a surcharge, the hotel offers public internet access. This pet-friendly hotel has a business center, a fitness center, and an outdoor pool.

  • Does ORD offer any designated lactation areas for nursing moms who might want some privacy and cleanliness?

    Yes. ORD provides 14 different areas where nursing mothers can breastfeed or pump in hygienic privacy. ORD has 6 Mothers Rooms, clean quiet rooms that have comfortable seating and a sink. There is one Mothers Room in Terminal 1, 2, and 5 each. There are two Mothers Rooms in Terminal 3 and in the Multi-Modal Facility, a combination of a parking garage and the rental car center. ORD also offers Mamava pods, free-standing 4 X 8 cabins that give nursing moms some sanitized privacy. There are two pods in terminals 1 and 2, and four pods in Terminal 3.

  • What is the cheapest flight from Chicago O'Hare Intl Airport to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to London Heathrow Airport was £220 for a one-way ticket and £484 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to London Heathrow Airport?

    All the following airlines offer inflight Wi-Fi service on the Chicago to London Heathrow Airport flight route: Iberia, British Airways, Finnair, American Airlines, Alaska Airlines, Lufthansa, and United Airlines.

  • Which aircraft models fly most regularly from Chicago to London Heathrow Airport?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Chicago to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Chicago to London Heathrow Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and London Heathrow Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Chicago to London Heathrow Airport?

    There are direct flights from Chicago to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from Chicago to London, Finnair or United Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to London are Finnair and United Airlines. With an average price for the route of £744 and an overall rating of 7.6, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of £757 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Chicago to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Chicago is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Chicago? 25% of our users found flights on this route for £346 or less one-way and £546 or less round-trip.
  • Chicago O’Hare International Airport (ORD) is a hub for United Airlines and American Airlines. London Heathrow (LHR) is a hub for British Airways.
  • In Terminal 2, just past the security checkpoint, ORD provides a Family Lounge to make waiting for a plane easier for those traveling with kids. This vibrant, colorful space provides seating, places to park strollers, and outlets to charge your devices. Sometimes, especially during the holidays, they might even have live entertainment, including artists who will draw your picture and musicians.
  • You can use Travelex to exchange currency at Heathrow. Order online before you leave and collect your money at a Travelex location in Heathrow, either post-security in Terminal 5 or pre-security in Terminal 2.
  • ORD features bathrooms that are designated all-gender, and these restrooms can be found throughout the airport in all terminals and in the Multi-Modal Facility.
  • If you have time to grab a bite to eat before you depart from ORD, you could eat at a restaurant where you can watch the planes land and take off: the food court and Berghoff Café in Terminal 1 and Chili’s Too in Terminal 3.
See more tips

Prefer to fly direct from Chicago to London Heathrow Airport?

Find which airlines fly direct from Chicago O'Hare Intl Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to London Heathrow

Monday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Tuesday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Wednesday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Thursday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Friday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Saturday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Sunday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

See more direct flights

Direct returns

London Heathrow to Chicago O'Hare Intl

Monday

Aer Lingus, Air Canada, Alaska Airlines, +12 more

Aer Lingus, Air Canada, +13 more

Tuesday

Aer Lingus, Air Canada, Alaska Airlines, +12 more

Aer Lingus, Air Canada, +13 more

Wednesday

Aer Lingus, Air Canada, Alaska Airlines, +12 more

Aer Lingus, Air Canada, +13 more

Thursday

Aer Lingus, Air Canada, Alaska Airlines, +12 more

Aer Lingus, Air Canada, +13 more

Friday

Aer Lingus, Air Canada, Alaska Airlines, +12 more

Aer Lingus, Air Canada, +13 more

Saturday

Aer Lingus, Air Canada, Alaska Airlines, +12 more

Aer Lingus, Air Canada, +13 more

Sunday

Aer Lingus, Air Canada, Alaska Airlines, +12 more

Aer Lingus, Air Canada, +13 more

See more direct flights
See more direct flights

Top 5 airlines serving from Chicago to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Chicago to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1281 reviews
8.2Crew
6.7Food
7.5Comfort
7.7Boarding
6.9Entertainment
Airline reviews

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

8.0 ExcellentRowland, Dec 2024HKG - SYD
Read more Finnair reviews

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

The entertainment system did not work. And we waited 45 minutes in our seats after we landed before we got to the gate

It was a pleasure definitely going with Iberia on my future travels

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Loved it! Best airline to fly with. Nice crew, good planes, good food!

Probably my favorite airline and way to go to Europe. Everything went smoothly! Food was tasty, crew was pleasant. Really cannot complain!

The airline refused to board me because I showed up only 50 minutes prior to departure time, despite the fact that shortly before that, when I arrived at the airport still in time, they changed the terminal and I had to take a bus that took 20 minutes. Keep in mind that for some maintenance error I could not check in online like I usually do. Personnel at the airport was unable to let me in, customer care was beyond useless, the original airline operator (Iberia) was as useless as a toilet paper roll core in time of a wipe and all this uselessness made me waste my ticket, my reservations, my long time parking, food and most of all the joy of being with my family for the new year after working my bottom off even at Christmas. Am I happy? Come and ask me in person!

The airline refused to board me because I showed up only 50 minutes prior to departure time, despite the fact that shortly before that, when I arrived at the airport still in time, they changed the terminal and I had to take a bus that took 20 minutes. Personal at the airport was unable to let me in, customer care was beyond useless, the original airline operator (Iberia) was as useless as a toilet paper roll core in time of a wipe and all this uselessness made me waste my ticket, my reservations, my long time parking, food and most of all the joy of being with my family for the new year after working my bottom off even at Christmas. Am I happy? Come and ask me in person!

The connection required us to travel from terminal A to terminal E with very little time in between flights. While waiting in line, we were called to the service desk to provide our passports. We provided our passports at time of check in, assuming that American Airlines doesn’t communicate well with Iberia, this was a headache.

The staff on our flight from Charlotte to Boston were very friendly.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

HORRIBLE. 3 hours delayed. Crew did not communicate properly and was rude to passengers enquiring. Delay caused multiple passengers to miss connections.

1. The flight was late and I did jot get the seat I paid for. I paid for extra leg room and a window seat. I got a middle seat without extra leg room. 2. The customer service representative was not helpful. Explanation: many passengers arrived to the service desk in Madrid near baggage claim to rebook our flights. (We all missed our connecting flight due to delays in JFK). Upon arrival, ghere was one service agent and one line-business. After about 25-30 minutes the agent left and we could see her making a phone call. After about 5 more minutes, 2 other agents arrived. During our wait, another line formed for main cabin customers. We were told to go to the other line, even after waiting around 30-40 minutes. This would have been disastrous for ghose of us who had been waiting for so long. The agents need more training.

I fly to BNA with BA often and this was the worst experience. Arriving in nashville, check in was 1.5 hrs long in the queue with 1 very slow girl at the desk. When more staff came they only catered to priority customers. When all priority were checked in, instead of filtering from the top of the line they took the people from the end, the people who had been queuing for 5 mins vs almost 2 hours. The flight was delayed, for no good reason other than the staff took forever to do anything. At the gate there was zero organisation, we asked the crew what the delay was and they confirmed it wasn't the plane and it was the ground team. One of the flight attendants was one of the rudest I have EVER encountered, that man clearly hated his job, and people...I wish I'd got his name. Food was disgusting, seating was cramped. I've no idea what's changed in the last year but I'm truly shocked.

British Airways changed flight times after booking, allowing very little time between connections. We had to rush to barely make the next flight. They also ran out of certain vegetarian options during our 10-hour flight. Crew was fine, but overall a very unpleasant experience.

Being a platinum member and having reserved an exit row I was bumped into a middle seat which should not be allowed. On top we landed 10 minutes early to wait 45 minutes on the tarmac at Heathrow. I used to love Iberia, loving it less and less

I have flown with many airlines. My first time was several years ago. Now I remember why I avoided them for so long. Lufthanza is the only airline who has ever raised a size/weight issue with my modest standard size carry on. I had to repack three times to meet their carry-on weight criteria. (Apparently the rules of physics apply differently on Lufthansa flight than on other airlines.) In the meantime their staff was quite rude, repeating meaningless phrases like "Rules are Rules." And ignoring the additional fact that weight is also weight, whether it is in found in your carry on or in your suitcase. They eventually acknowledged that customer service and satisfaction is, for them, a low priority. Never choosing Lufthansa again.

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

They are professional. Nice crew. Still flying Boeing 747. Thank you for that. I love this airplane. Traditional.

Connecting from Germany with not enough time to go thru TSA and security so many times. Kayak or whomever doesn’t leave you enough time between flights. I made it with 5 min before my zone was called. Too stressful

The seats were extremely uncomfortable. I spent €25 on internet and never gained access to it. A flight attendant told me she would file a complaint/report on my behalf but it put me in a very difficult situation.

Boarding was easy and well organized, Breakfast was not very good.

Sitting in a hotel in Chicago because I was rebooked due to a missed connection. Very frustrating.

Well,I miss a flight to Stl with United,they send me to Stl with a different airline, but same day,which was great

Terrible. Had to go through customs and pick up our luggage. Then they said we couldn't make our connecting flight to MKE when we had 35min before takeoff. There were no other flights out on any airline so we would've had to spend the night at ORD. We were able to get a ride to MKE at our expense instead. Ridiculous that they would not allow us to try to make the flight, which we would have. Assuming rechecking the luggage was the problem. They should not have listed this as a viable connecting flight if there was no chance in making it. There was 4 people in our party.

The airplane was as hot as a sauna upon boarding. I was dripping with sweat. Something needs to be done about that.

Nice flight. Legroom was good. Food was good. Staff was friendly and helpful. Plane was modern and clean. Seats and headrests were comfortable. Entertainment system was good and modern, with a bright LCD screen and many appealing choices.

I have something to say about the flight I took from London to Gothenburg, after my flight from Austin to London. I fly a lot and have done so for decades. I first flew to Scandinavia in 1973. My former wife is Norwegian. The main thing was the experience at the Gothenburg airport. Three flights from Britain arrived around the same time. So there were huge lines at immigration since Brits are no longer a part of the EU. After over an hour in line, I finally gave my passport to the immigrations man. You’d have thought I was an Afghan. I just barely got into Sweden. I had to answer all kinds of blunt questions. I had to show all kinds of onward tickets, addresses of places I’d be staying and it was pretty daunting. Perhaps it has to do with the situation with Russia. British Air might have done something to prepare people that things have changed a lot and they’d better be ready to run the gauntlet when trying to get into the country here. Thanks for listening and taking this into consideration. Sincerely, a senior citizen of the USA

My flight was late. We stayed in aircraft one hour 😩

Flight delay and can’t much help passenger do the change connecting flight.

5 days later I have not yet received my luggage so terrible and unacceptable

Easy and quick check in, clean and nice seats. Overall excellent experience.

The seats in airbus from LA to London are uncomfortable. They are too narrow. I am a slim person but felt cramped. The way the seats are laid out really hinders privacy. You are forced to look at the person next to you which is awkward, Also the entertainment on the same leg was limited. The crew was excellent and attentive and the food was decent. The seats on London to Delhi leg were way better. The crew again was very attentive and polite.

Great job notifying of 30 minute delay in departure. Fabulous job making up for the time and arriving as scheduled. Air travel is just no fun anymore with the extreme overcrowding, and someone needs to come up with an innovative plan for loading and unloading passengers (load all window seats first, middle seats second, aisle seats last?). Great job getting the luggage on the carousel in record time!

Although it was an overnight flight, the crew could’ve have made more refreshment passes.

All and it was good . But no one woke me when meals came around . Please have a don’t not disturb sign if you opted for that . Left very hungry missing all meals .

Book cheap flights from Chicago to London

Cheapest flights to London from Chicago found in 2025

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chicago to London found on KAYAK in the last 72 hours.
4/2Tue
2 stops
18h 23mORD-LHR
£177
4/2Tue
2 stops
18h 23mORD-LHR
£179
28/1Tue
2 stops
18h 23mORD-LHR
£182
12/3Wed
directBritish Airways
7h 50mORD-LHR
£317
2/3Sun
directIberia
7h 50mORD-LHR
£319
9/2Sun
directFinnair
7h 50mORD-LHR
£323
8/4Tue
directBritish Airways
7h 40mORD-LHR
£325
21/1Tue
directFinnair
7h 40mORD-LHR
£328
8/1Wed
2 stopsUnited Airlines
18h 05mORD-LHR
£332
5/3Wed
directIberia
7h 45mORD-LHR
£346

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Last minute flights from Chicago to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Chicago to London that are departing in the next 10 days.
8/1Wed
multi-stopTAP AIR PORTUGAL
14h 15mORD-LHR
15/1Wed
multi-stopTAP AIR PORTUGAL
15h 30mLHR-ORD
£494
8/1Wed
multi-stopFinnair
10h 13mORD-LHR
21/5Wed
multi-stopFinnair
16h 20mLHR-ORD
£512
7/1Tue
directUnited Airlines
8h 05mORD-LHR
14/1Tue
multi-stopUnited Airlines
16h 11mLHR-ORD
£521
8/1Wed
directUnited Airlines
8h 05mORD-LHR
13/1Mon
multi-stopUnited Airlines
32h 30mLHR-ORD
£524
6/1Mon
directBritish Airways
7h 50mORD-LHR
17/1Fri
directBritish Airways
8h 50mLHR-ORD
£537
8/1Wed
directBritish Airways
7h 40mORD-LHR
12/1Sun
multi-stopBritish Airways
19h 04mLHR-ORD
£574
7/1Tue
directIberia
7h 40mORD-LHR
12/1Sun
multi-stopIberia
17h 10mLHR-ORD
£606
5/1Sun
directIberia
7h 40mORD-LHR
13/1Mon
multi-stopIberia
15h 15mLHR-ORD
£723
5/1Sun
multi-stopLufthansa
20h 40mORD-LHR
12/1Sun
multi-stopLufthansa
18h 11mLHR-ORD
£749
4/1Sat
directLufthansa
8h 05mORD-LHR
17/1Fri
multi-stopLufthansa
12h 45mLHR-ORD
£884

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Everything you need to know for your flight from Chicago to Heathrow

Information on your arrival and departure airports

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