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CHI - LHR

£139 Find cheap flights from Chicago to London

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 27/10. 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

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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 45,193,698 times on KAYAK, and here's why:

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Cheap flight deals from Chicago to London (CHI-LHR)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to London 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
18:30 - 10:50ORD-LHR
10h 20m1 stop
12:15 - 17:20LHR-ORD
11h 05m1 stop
£348Icelandair
Find Deal
Sat, 30 Nov - Thu, 5 Dec
19:10 - 17:40ORD-LHR
16h 30m1 stop
06:40 - 15:50LHR-ORD
15h 10m1 stop
£349Scandinavian Airlines
Find Deal
Sun, 8 Dec - Sat, 25 Jan
19:30 - 20:20ORD-LHR
18h 50m1 stop
21:25 - 18:20LHR-ORD
26h 55m1 stop
£352Icelandair
Find Deal
Wed, 16 Oct - Wed, 23 Oct
08:25 - 22:10ORD-LHR
7h 45mdirect
20:10 - 14:20LHR-ORD
24h 10m1 stop
£419Iberia
Find Deal
Mon, 7 Oct - Tue, 22 Oct
18:20 - 11:40ORD-LHR
11h 20m1 stop
19:15 - 11:32LHR-ORD
22h 17m1 stop
£421British Airways
Find Deal
Wed, 2 Oct - Mon, 7 Oct
18:55 - 13:15ORD-LHR
12h 20m1 stop
19:15 - 11:32LHR-ORD
22h 17m1 stop
£441British Airways
Find Deal
Mon, 14 Oct - Mon, 21 Oct
22:05 - 11:40ORD-LHR
7h 35mdirect
06:25 - 14:30LHR-ORD
14h 05m1 stop
£447Iberia
Find Deal
Tue, 12 Nov - Fri, 6 Dec
15:50 - 05:55ORD-LHR
8h 05mdirect
11:10 - 19:25LHR-ORD
13h 15m1 stop
£450Lufthansa
Find Deal
Wed, 23 Oct - Thu, 31 Oct
21:00 - 14:25ORD-LHR
11h 25m1 stop
08:50 - 19:15LHR-ORD
16h 25m1 stop
£453Aer Lingus
Find Deal
Thu, 20 Feb - Tue, 25 Feb
16:55 - 08:05ORD-LHR
10h 10m1 stop
08:50 - 14:00LHR-ORD
11h 10m1 stop
£479Aer Lingus
Find Deal
Wed, 30 Oct - Sun, 3 Nov

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 is the cheapest Chicago to London Heathrow Airport flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Chicago to London Heathrow Airport.
Our data shows that the cheapest route for a one-way flight from Chicago to London Heathrow Airport cost £281 and was between Chicago O'Hare Intl Airport and London Heathrow Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is £426.

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

The average price of all flights from Chicago to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
For Chicago to London, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from London back to Chicago, the best deals are generally found on Wednesday, with Sunday being the most expensive.

What is the cheapest month to fly from Chicago to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Chicago 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 to London Heathrow Airport is February, where tickets cost £465 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is £851 and £742 respectively.

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

The average 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.
No, with an average price for the route of £2,608, prices are generally cheapest when you fly direct.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Chicago to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Chicago to London Heathrow Airport, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 75 days before departure.

Good to know - Cheap tickets from Chicago to London

Low season

February

High season

June

Cheapest flight

£139
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly (45% more expensive on average)
Flight from Chicago O'Hare Airport 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 flights

  • Where at London Heathrow (LHR) Airport can I exchange my US dollars for Pounds?

    There are a couple of places in the airport where you can enjoy currency exchange. Look for currency exchange centers in Terminals 2, 3, 4, and 5. There is also a branch of Barclays, Lloyds, and HSBC banks inside the airport terminals.

  • Is there a hotel at the London Heathrow Airport (LHR)?

    If you have a late arrival or your plane is delayed, you'll be happy to know that there is a hotel at the airport. The Aerotel T3 London Heathrow is located in Terminal 3. You can rent a room by the hour or the day.

  • Where can I relax at the Chicago O'Hare (ORD) or the Chicago Midway Airport (MDW)?

    At Chicago Midway Airport (MDW) there is a yoga room where you can meditate and relax. If you fly into the Chicago O'Hare Airport (ORD), there are a few spas where you can get a chair massage or another spa or beauty service.

  • How can I get from the London Heathrow Airport (LHR) to my hotel?

    The public transportation system in London is very advanced. You'll have the option of taking the tube (subway) or train (light rail) into the city. The subway station is located in Terminal 4 and it will take about 50min to get to the heart of the city. There is also an express train that goes to many areas in the city including London's Westminster borough. The Heathrow Express takes about 20min to get to the London Picadilly Station. The train picks up passengers at Terminals 2, 3, and 5.

  • What is the cheapest flight from Chicago to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Chicago to London Heathrow Airport was £184 for a one-way ticket and £461 for a return.

  • Which airports will I be using when flying from Chicago to London?

    Chicago has 2 major airports: Chicago Midway and Chicago O'Hare Intl. London Heathrow is the only airport in London. You’ll usually find the cheapest deals if you fly from Chicago O'Hare Airport.

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

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

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

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

  • Which airline alliances offer flights from Chicago to London?

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

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

    There are direct flights from Chicago to London 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 £584 and an overall rating of 7.7, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of £579 and an overall rating of 7.4.

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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?

    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 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?

    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 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 to London Heathrow Airport

  • Looking for a cheap flight from London to Chicago? 25% of our users found flights on this route for £345 or less one-way and £471 or less round-trip.
  • Your flight to London Heathrow (LHR) could leave from either of the two main Chicago airports. Chicago's O'Hare Airport (ORD) is the larger of the airports. It is closest to the Elk Grove, Addison, and Des Plaines communities. Chicago's Midway Airport (MDW) is much closer to downtown and close to neighborhoods in Southwest Chicago such as Garfield Ridge, West Lawn, and the village of Bedford Park.
  • Although you can easily find a nonstop flight from Chicago to London Heathrow, you might have to change planes depending upon what flight you choose. Your layover and plane transfer could happen in Montreal, Toronto, Lisbon, Amsterdam, or at New York's JFK Airport. On average, the layover will be from 1-4h.
  • At the London Heathrow Airport, there is a tourist information center. It is located in the underground terminal and provides concierge services such as theater tickets, restaurant referrals, sightseeing tours, transportation, and London accommodations.
  • For convenience, you can have someone drop you off at the Chicago O'Hare Airport (ORD). Drop-off is permitted at all of the terminals. If your driver wants to avoid the heavy traffic around the airport, they can drop you off at one of the airport lots such as the Kiss n' Fly lot or the Multi-Modal Facility on Zemke Boulevard. Both of these locations offer a shuttle service to the airport.
  • London Heathrow (LHR) is a very large airport. To help passengers get around, there is a connection bus that will take you from one part of the airport to another. The Heathrow Airport also has a PODCAR system. This is an electric, driverless vehicle that covers a small section of the airport.
See more tips

Flights from Chicago to Heathrow: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Chicago to Heathrow 
Verified travelerFlew with United AirlinesJul 2024
Even though you may have a delay or two the important part is that you arrive safely from one point to the next. I wish I could get some credit back since I paid for a nonstop flight and ended up having a connecting flight.
Verified travelerFlew with British AirwaysMay 2024
Make sure you get a airline that allows one check-in luggage and respects its customers.
AaronFlew with American AirlinesDec 2023
Find a flight where you are allowed to choose your seats before the day of boarding for anything international.

Prefer to fly direct from Chicago to London?

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

Direct departures

Chicago 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

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.
7.2
IcelandairOverall score based on 664 reviews
7.2Boarding
7.0Comfort
8.1Crew
7.2Entertainment
6.3Food
Airline reviews

Easy check in and boarding. Staff pleasant and helpful. Will continue to fly with Iceland air. Aircraft clean

8.0 ExcellentAnonymous, Sept 2024MSP - KEF
Read more Icelandair reviews

Easy check in and boarding. Staff pleasant and helpful. Will continue to fly with Iceland air. Aircraft clean

Plane left an hour late and missed our connecting flight. Your service center was closed ao Alaska Airlines could not change the ticket. Thus we missed the chance to get out that night to San Jose. This is a major operational blunder.

never seen an international flight , over 5 hours that had no food provided. we flew from iceland to vancouver, no food, no even a snack. For entertainment you had to buy the headphones which are normally also provided for free on any other airlines.

Flight was delayed. They did a terrible job rebooking me. Agent on the ground was useless. The partner airline who ran the plane was able to help me but Iceland air was useless

Did not like last minute change to our itinerary that made us spend the night in the airport

Most of your crew was very helpful just one young lady wasn’t, but all of the ones I dealt with were great. We had to buy food on a six hour flight and considering we had a three hour flight before this one I felt we would have a meal included. I ordered a sandwich and by the time I got it, it was quite soggy so couldn’t eat half of the sandwich. Other than the food, or lack of, the flights were great.

The ground staff was very helpful and the flight attendant as short but good.

7 hours 15 min flight from SEA to Iceland with no inflight entertainment and no power to charge your own devices, also no meal service, not even any snacks/cookies. You have to buy food and the options are extremely limited (i.e. ham and cheese sandwich and spicy cup noodles). I didn't think Iceland air was a budget airline, maybe I was wrong, the cost of the ticket didn't feel like it though.

Not good. It’s a terrible budget experience and the crew were not very helpful. The plane was so hot and uncomfortable and the entertainment was awful (not even headphones offered and antiquated jacks that don’t work with new iPhones). I was placed on standby for my flight home for no apparent reason, causing me to be put in the worst seat and at the end of the plane. They did not try to fix the situation.

Great crew, bumpy landings, two-hour wait for baggage with no communication or explanation. Will not fly again!

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!

Golf Bags never made it on the flight. Very expensive golf bag and. Clubs,shoes, clothing. Will file a claim against Aer Lingus

Horrible. Garbage airline. Due to the strike we got a replacement plane/crew. I didn't get my exit row seat I paid for. Food was horrible. Plane was hot and didn't have AC vents.

The first leg of my 2 flights were delayed, causing me to miss my second flight and have to stay the whole night in Dublin. Super upset with this experience, and I still need to figure out how to get compensated for this.

Everything went well, but could have used a bit more legroom.

The flight got us safely from point a to point b and on time. For a transatlantic flight that isnt nothing. Flight crew was kind and professional. The seats are super uncomfortable (worse than domestic budget airlines) and the cabin was DIRTY.

Long unexplained delay, uncomfortable back row, long waits for trash collection.

Great service on the plane and by ground staff. great prices. I was able to change seats on the plane. The allocated seats cannot be changed when checkin in online. They have to be done at the airport if you check in at the airport or on the plane by asking a stewardess / steward.

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 had assist travel booked in Denver to Manchester, but not listed in HeathRow, my daughter use a spare wheel chair herself for me , when going thro to board at Heathrow there was no help travel down for the ramp until a member of assistance stepped forward and insisted he would take me down the very steep ramp, seems he was the only person concerned with my safety.

Booked Economy Premium the 3 seats with my daughters and I, the seats should have been able to tilt back but it only one worked. the crew said they would report it but didnt seem both about our comfort on the return journey.#

Better pillow cases in economy. I didn’t like that I couldn’t pick my seats since I booked with Kayak.

Room between seats unacceptable. If person front of you dropped down there seat even a little you could not be even a little comfortable. No sleep on flight

A bit noisy. The seat was suboptimal and there was too much noise in the service area. Some if the crew members were less than nice; others were great.

The crew on this flight was probably the worst I have ever come across. This applies particularly to Karen and Lee (possibly Jason) - the short, overweight pompous guy - arrogant and rude are possibly too kind a description. This Lee/Jason obviously failed his exams at Charm School, and frankly, in my view, needs to be dismissed immediately. Karen was similar to the guy in attitude, but not quite as rude.

Problems at check in with prepaid luggage causing delays with both flights, noticeably old and dated planes, onboard luggage bags (BA small luggage size) too big for centre overhead luggage boxes (dangerous if opened) no Wi-Fi available on outward flight, food on inbound flight atrocious, food/drink service on inbound below par.

Always an excellent experience. Staff are professional without being overly fussy.

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.

Seats much smaller/less leg room than united from Phx. Biarding was very poor and unroganized.

United delayed the flight to assist customers to make the connection. The Ohara customs area was overwhelm which created an issue for customers trying to make the Little Rock connection. The delayed allow several customers to make the final flight into Little Rock.

Missed our flight to London and we were put on coach seats to Munich.

Seats were terribly uncomfortable! Couldn’t sleep! I paid for good seats when scheduled with Lufthansa, got crappy mid-section seats on Air Canada!

No refreshments apart from a bottle of water. No pillows. No entertainment. Flight delayed by 52 minutes.

Very disappointed because we don’t get in advance the cancellation fly to Paris. By the way, we are still without luggage Bad experience

Could have done with a 2nd round of drinks even if it was only to distribute bottled water

The seats (upgraded exit row), were the last comfortable plane seats my wife or I have ever experienced. Too narrow to turn at all to find a sleeping position. Devoid of cushioning to the point of feeling the frame bars across both the seat and the back. It was extremely uncomfortable and neither of us slept on the red eye.

Lost luggage l try contact the airline no answer FILE REFERENCE# CHQBA10196/14 SEP24/ 1043 YEE JAMES FLIGHT/DATE - BA202/13SEP/BA666/14SEP NUMBER OF BAG - 1 TICKET NUMBER- BA219096982 COLOR/ TYPE - BLACK DUFFEL/ SPORT BAG TAG NUMBER - BA401690/

The second leg of my flight unexpectedly got canceled. I was stuck at the airport for the whole day and instead of flying out that morning I flew out in the evening. For some of my fellow passengers it was the second cancellation and their original flight was supposed to go out the day before. There was no reason given though getting rebooked was quick even though I would have preferred if I would have been on one of the earlier flights that day. Compensation was a £10 voucher for some food at the airport. I eventually arrived without further incident but but due to the cancellation, it was one of my more frustrating travels of my life.

They denied us boarding on our scheduled flight and experienced significant disruption to our travel plans because of overbooking the flight!

Didn’t even get on the flight!! BA had a system crash and knocked many peoples boarding passes back for the connecting flight which we all would have made but ended up missing due to being refused past the barrier. There was one member of staff on and when he shift swapped the new staff member called us liars and that we were going to be too late for our flight hence the knock back which was false. I was an hour and ten minutes early for my connection flight at the time of scanning the boarding pass. Waited for three hours and ended up having to book a train home myself which was 4 hours long! Staff were useless and entire experience was an inconvenience. I had been travelling for three months and of course it was when I was back in my home country that I had the first muck up! Will not be touching BA to fly again

I’ll fly with any other airline. Besides all the fees and not being able to change a flight even to a later flight without paying £150 charge. Or that the last flight the WiFi didn’t work, the food was so bad, and ran out of options. Seat didn’t recline. And the headset jack didn’t work. This isn’t my first flight with them, and on every flight there is always something wrong that makes the long 10 hours feel like an eternity. Never flying them again.

On this flight I was in BA business class. I am used to flying United Airlines Polaris class and I was underwhelmed by BA’s business suite class. A few things: - the lounge at LAS was very basic and crowded and the LHR/T3 lounge a bit better, but still not like the Polaris lounges - boarding was chaotic, no one knew what group was supposed to board - the suites were nice, but the padding was not really made for sleeping on - crew were friendly, but only really one tray/serving for the dinner service. None of “drink first, then dinner with 1-2 pourings of wine, then dessert”. UA might not be known for the best service in the industry, but compared to BA they are super attentive. During the BA flight there was no one checking in on you after you got your one tray. - arrival at LHR was busses taking us back to the terminal, surprising for a long flight. Once again chaotic. The bus for First/Business was completely packed with anyone who could get on and the driver was screaming at passengers to get every inch packed before he drove to the terminal. By the time I arrived I felt like BA had sold me a superior flight experience and delivered a mediocre economy class experience just because they can and do not really care about their customers. Very disappointing.

Flight left late and we missed our connection in London requiring an 8 hour wait in Heathrow for the next available flight. One of flight attendants was not helpful with my husband’s necessary crutches.

Book cheap flights from Chicago to London

Cheapest flights to London from Chicago found in 2024 and 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.
27/10Sun
1 stopIcelandair
10h 20mORD-LHR
£139
1/10Tue
1 stopIcelandair
18h 55mORD-LHR
£144
16/10Wed
1 stopIcelandair
10h 25mORD-LHR
£145
1/10Tue
1 stopIcelandair
10h 30mORD-LHR
£146
7/10Mon
2 stopsScandinavian Airlines
16h 45mORD-LHR
£278
30/9Mon
directIberia
7h 40mORD-LHR
£285
13/11Wed
directBritish Airways
7h 40mORD-LHR
£286
18/11Mon
directBritish Airways
7h 50mORD-LHR
£288
24/9Tue
directFinnair
7h 40mORD-LHR
£288
31/10Thu
directIberia
7h 45mORD-LHR
£315

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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.
24/9Tue
directBritish Airways
7h 35mORD-LHR
3/10Thu
directBritish Airways
8h 30mLHR-ORD
£432
24/9Tue
multi-stopAmerican Airlines
10h 25mORD-LHR
1/10Tue
directAmerican Airlines
8h 30mLHR-ORD
£435
24/9Tue
directAmerican Airlines
7h 40mORD-LHR
4/10Fri
multi-stopAmerican Airlines
13h 57mLHR-ORD
£439
21/9Sat
multi-stopIcelandair
10h 30mORD-LHR
7/12Sat
multi-stopIcelandair
11h 05mLHR-ORD
£452
24/9Tue
directFinnair
7h 40mORD-LHR
29/9Sun
directFinnair
8h 37mLHR-ORD
£469
24/9Tue
multi-stopFinnair
14h 05mORD-LHR
29/9Sun
directFinnair
8h 37mLHR-ORD
£473
21/9Sat
multi-stopIcelandair
31h 40mORD-LHR
26/9Thu
multi-stopIcelandair
11h 05mLHR-ORD
£519
22/9Sun
directIberia
7h 40mORD-LHR
24/9Tue
multi-stopIberia
13h 11mLHR-ORD
£653
22/9Sun
directIberia
7h 45mORD-LHR
26/9Thu
directIberia
8h 40mLHR-ORD
£696
24/9Tue
multi-stopLufthansa
14h 25mORD-LHR
12/10Sat
multi-stopLufthansa
23h 25mLHR-ORD
£764

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

Information on your arrival and departure airports