£203 Find Cheap Flights to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Chicago departing on 26/9. 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.
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These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
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Cheap Flight Deals to Chicago

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Chicago 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 to Chicago

KAYAK's recommended return flight deals from the most popular airlines that fly to Chicago.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Icelandair Logo
15:40 - 18:15LGW-ORD
32h 35m1 stop
Icelandair Logo
19:25 - 14:35ORD-LGW
13h 10m1 stop
£368Icelandair
Find Deal
Sat, 6 Sep - Mon, 15 Sep
Icelandair Logo
15:40 - 21:15LGW-ORD
11h 35m1 stop
Icelandair Logo
19:25 - 14:40ORD-LGW
13h 15m1 stop
£370Icelandair
Find Deal
Fri, 22 Aug - Fri, 5 Sep
Lufthansa Logo
06:55 - 13:55LHR-ORD
13h 00m1 stop
Lufthansa Logo
14:35 - 09:40ORD-LHR
13h 05m1 stop
£399Lufthansa
Find Deal
Mon, 5 May - Sun, 11 May
British Airways Logo
09:50 - 15:45LHR-ORD
11h 55m1 stop
British Airways Logo
22:35 - 12:15ORD-LHR
7h 40mdirect
£400British Airways
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Lufthansa Logo
06:30 - 12:55LHR-ORD
12h 25m1 stop
Lufthansa Logo
16:05 - 06:20ORD-LHR
8h 15mdirect
£401Lufthansa
Find Deal
Sat, 3 May - Mon, 12 May
British Airways Logo
09:50 - 15:45LHR-ORD
11h 55m1 stop
British Airways Logo
22:35 - 12:15ORD-LHR
7h 40mdirect
£403British Airways
Find Deal
Mon, 15 Sep - Sat, 20 Sep
Finnair Logo
14:40 - 23:08LHR-ORD
14h 28m2 stops
Finnair Logo
11:50 - 06:15ORD-LHR
12h 25m1 stop
£447Finnair
Find Deal
Fri, 9 May - Sun, 18 May
Finnair Logo
15:30 - 18:15LHR-ORD
8h 45mdirect
Finnair Logo
16:56 - 11:05ORD-LHR
12h 09m1 stop
£481Finnair
Find Deal
Fri, 5 Sep - Sat, 20 Sep
Aer Lingus Logo
08:10 - 14:00BHX-ORD
11h 50m1 stop
Aer Lingus Logo
15:45 - 07:40ORD-BHX
9h 55m1 stop
£670Aer Lingus
Find Deal
Sat, 7 Jun - Sat, 21 Jun
Aer Lingus Logo
06:45 - 14:00LCY-ORD
13h 15m1 stop
Aer Lingus Logo
15:45 - 10:20ORD-LCY
12h 35m1 stop
£693Aer Lingus
Find Deal
Mon, 12 May - Thu, 15 May

KAYAK's insights & trends for flights to Chicago

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

What is the cheapest flight to Chicago?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.
In the last 3 days, the cheapest flight deal to Chicago was found on the route from London, at £275 return. The most popular connection is from Edinburgh to Chicago and KAYAK users have found return deals for as low as £410 in the last 3 days.

How much is a flight to Chicago?

The average and cheapest price for all round-trip flights to Chicago from each origin found by users searching on KAYAK in the last month.
A flight to Chicago costs £660 on average. The cheapest price found on KAYAK in the last 2 weeks cost £421 and departed from London Heathrow Airport. The most popular routes on KAYAK are London to Chicago which costs £659 on average, and Edinburgh to Chicago, which costs £693 on average.
See prices from:

What is the cheapest day to fly to Chicago?

The average price of all round-trip flights to Chicago clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Chicago is Wednesday where round-trip tickets can be as cheap as £617. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £671 on average.

What is the cheapest month to fly to Chicago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Chicago, 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 to Chicago is February, where tickets cost £433 on average for return flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from the United Kingdom is £678 and £656 respectively. For one-way flights, the best month to travel is February with an average price of £427.

What is the cheapest time of day to fly to Chicago?

The average price for all round-trip flights to Chicago depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Chicago is generally at night, when round-trip flights cost £672 on average. The most expensive time of day to fly to Chicago is generally in the evening, which is peak travel time and where the average cost of a ticket is £873.

What is a good deal for flights to Chicago?

If you’re looking for cheap airfare to Chicago, 25% of our users found tickets to Chicago for the following prices or less: From London Heathrow Airport £538 return.

How far in advance should I book a flight to Chicago?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Chicago, 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, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Which is the cheapest airport to fly into in Chicago?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Chicago is Chicago Midway Airport (MDW), with an average flight price of £132.

Good to know - Cheap tickets to Chicago

Low season

January

High season

July

Cheapest flight

£203
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from London Heathrow Airport to Chicago O'Hare Airport

When to book flights to Chicago

Are your dates flexible? Find out the best times to travel to Chicago 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. The information is for flights to Chicago based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights to Chicago: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew to Chicago 
Verified travelerFlew with British AirwaysLHR-ORDSept 2024
BA had great food, should have brought a few more snacks and dressed more warmly though!
Verified travelerFlew with British AirwaysLHR-ORDJun 2024
Person’s should do their due diligence of airlines before booking flights.
Verified travelerFlew with IberiaLHR-ORDMay 2024
If you haven't flown with them before, try British Airways. A great experience.

FAQs - booking Chicago flights

  • What facilities are available for families with children at Chicago Airport?

    If you are travelling with small children and concerned about passing the time before boarding your flight, then take them over to the Kids on the Fly Children’s Museum at O’Hare (ORD) at Terminal 2 and let them stretch their legs for a while. Afterwards, there are family restrooms to freshen up located in each one of the airports five terminals.

  • Are there any onsite hotels at Chicago Airport?

    Hilton Chicago O’Hare Airport is located on the airport premises just opposite of Terminal 2 and has several business and meeting rooms which can be used to host corporate events and annual meetings or project launches. Hilton Chicago O’Hare Airport also boasts a full service health spa and fitness club for use by its guests.

  • How do I get from Chicago Airport to downtown Chicago?

    Chicago Airport offers the full complement of transportation options to the downtown area. PACE bus routes 250 and 300 provide regular service to the city centre which can also be accessed via the Metra train and the Blue Line of the Chicago Transit Authority. Of course taxis are in abundance at the airport and car rental is also a good option.

  • What shopping options are there at Chicago Airport?

    Chicago Airport has a wide selection of souvenir and duty-free shopping to choose from as well as premium retail concessions like Emporio Armani and Mont Blanc for more exclusive gift ideas. Love from Chicago carries lots of bric-a-brac which can make fun souvenirs and there is also MAC the cosmetics paradise.

  • What services are offered to passengers with reduced mobility on American Airlines flights to Chicago?

    American Airlines offers a range of services to passengers with reduced mobility on flights to Chicago, including wheelchair service, pre-boarding assistance, and assistance with navigating the airport. These services can be arranged when booking the flight. Additionally, American Airlines allows service animals to travel with passengers who require them.

  • What is the luggage allowance on Finnair flights to Chicago?

    Passengers flying on Finnair are allowed to bring at least one personal item, such as a handbag or laptop bag in addition to their carry-on bag. The maximum combined weight of the carry-on and personal item is 10 kg. Economy Class passengers are allowed to check at least one bag that weighs up to 23 kg while Business Class passengers can check up to two bags, each weighing 32 kg or less.

  • What services are offered to Economy passengers on Iberia flights to Chicago?

    Economy passengers flying on Iberia flights to Chicago are offered a range of services, including a selection of complimentary drinks and snacks during the flight. The in-flight menu features a variety of food and drink options that can be purchased by passengers. Passengers can also choose from a variety of digital content, including movies, TV shows, and music, through the airline's entertainment system.

  • What class seat options are available on Virgin Atlantic flights to Chicago?

    Virgin Atlantic flights offer a range of cabin classes on flights to Chicago, including Upper Class, Premium Economy, and Economy. Upper Class is the airline's luxury class offering. Premium Economy is a higher level of service than economy, with larger seats, more legroom, and additional amenities. The Economy cabin offers standard seats with in-flight entertainment and drinks.

  • What is the cheapest flight to Chicago?

    In the last 3 days, the cheapest flight deal to Chicago was found on the route from London, at £275 return. The most popular connection is from Edinburgh to Chicago and KAYAK users have found return deals for as low as £410 in the last 3 days.

  • Which Chicago airport is closest to central Chicago?

    The distance between Chicago Midway Airport and the city centre of Chicago is 9 miles, which makes it the closest of the 3 Chicago airports airports. Chicago O'Hare Airport is 16 miles away from the centre and Chicago Greater Rockford is 79 miles away.

  • How much is a flight to Chicago?

    On average, a flight to Chicago costs £660. The cheapest price found on KAYAK in the last 2 weeks cost £421 and departed from London Heathrow Airport.

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

    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 to Chicago.

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

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

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

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

    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 Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Chicago are there each week?

    Each week there are around 70 direct flights from within United Kingdom to Chicago. The most common day for departures is Thursday, with 14% of flights taking off on this day.

See more FAQs

Top tips for finding cheap flights to Chicago

  • Looking for a cheap flight from the United Kingdom to Chicago? 25% of our users found flights on this route for £533 or less one-way and £599 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago flight deals.
  • O’Hare International Airport or Chicago Airport is one of the busiest in the world and getting around this Chicago hub is made easier by the ATS rail service which links International terminal 5 with Domestic terminals 1, 2 and 3, the PACE bus stop and the parking areas located around the premises.
  • Looking for a place to relax and unwind before or after your flight to Chicago? Terminal Getaway Spa offers three locations to help you do exactly that with a variety of hand, foot and Swedish massages guaranteed to soothe any tension right away located at Terminal 1 and Terminal 3 Main building and between Concourses H and K.
  • Through the Airline Lounge Service, most domestic and international carriers serving Chicago O’Hare Airport host lounges where you can relax and enjoy a bit of hospitality whether you are a member or not. United Club, British Airways Terraces Lounge and Delta Sky Club are just three of the options to choose from.
  • If you’re feeling a bit hungry and have time to spare after your flight to Chicago, there is a plethora of dining options available at Chicago Airport sure to suit every taste. From tavernas like Publican Tavern to wine bars like Bubbles Wine Bar; from the Mediterranean fare of La Tapenade to the German-American menu at Berghoff Café, there’s something for virtually everyone.
  • Seaway Bank offers international travellers on flights to Chicago four offices providing currency exchange, cash advances and Cashier Cheques so you can start to explore the city of Chicago without missing a beat. Foreign currency exchange locations are to be found at Terminals 1, 2, 3 and 5 for your convenience.
  • Passengers who are travelling from London on flights to Chicago can expect stopovers in different cities depending on the airline. Some common stopovers for the route include Philadelphia (PHL), Dublin (DUB), New York (JFK), and Amsterdam (AMS).
  • Flights from London to Chicago O'Hare International Airport (ORD) typically arrive at Terminal 5, which has the Virgin Atlantic Clubhouse, Swissport Lounge, and Air France-KLM Lounge.
See more tips

Top 5 airlines flying to Chicago

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Chicago? 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 1272 reviews
7.4Comfort
6.7Food
7.6Boarding
8.1Crew
6.9Entertainment
Airline reviews

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

8.0 ExcellentAnonymous, Jan 2025DFW - CVG
Read more Finnair reviews

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

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

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Bad. Flights were late, by hours. No clear information was provided even until the delayed boarding time.

Again, lines for boarding are a problem in iceland. The flight itself was fine and very smooth. No complaints. We would definitely fly icelandair again.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

Booked through Kayak, couldnt take flight, Kayak punted to Orbiz, Orbiz punted to Aer Lingus, Aer Lingus said sorry about your luck, try Kayak/Orbiz. Terrible customer service collecting air fares and not even offering a voucher when customers cant take flight

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

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.

I wish seats were not reclinable. It's so claustrophobic when the person in front of you spends most of a nine hour flight leaned all the way back. The crew was really nice though and the dinner (red Thai curry) was pretty compelling.

Our flights were severely delayed, then canceled and we had to fly out next day with no sleep accommodation help. This led to our baggage being lost and the service reps after baggage couldn’t be bothered to help. They kept sending us to different counters when we were at the right counter to begin with. The only saving grace was the angel woman supervisor with blond hair who helped us put in a missing baggage claim.

The boarding system was all bogus - employees at the boarding gate were not sound like proffesional or may be possibly rational

I got an email in the morning of the flight 1/7, from Kayak, that I was rebooked from UA 906 to LH 430. Nobody at Lufthansa ot United knew about this. I went to both counters. at the airport. Also, Cheap Flights, who I booked the ticket through, did not know. I ended up staying on the United flight. But this was very disturbing, since I got a very late notice that I was rebooked to an earlier flight, I hurried to the airport to find out after a lot of inquiring that this was a mistake. Not a good Kayak experience.

After living in Europe for five years and flying with Lufthansa and KLM airlines, I’ve realized that United Airlines is now a budget carrier. The flight attendant are not friendly. The seats are not comfortable. And everything comes at a cost. I will be flying with KLM and Skyteam like Delta to the US going forward no doubt. United Airlines is not what it once was:

Delayed take off but I think they waited for passengers.

I had to fly United where the flight crew was atrocious

Flight was delayed for no reason and I missed my connection. This added another day of travel and I missed an event I was traveling home for.

I traveled with my sister, however ,we booked a flight separately, and we don't sitting next to each other. The staff on the board where on the top of this unit they find us sitting together. Ty lufthansa team. U are the best

Courtesy of waitress. Could improve on time management and check-in

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

They did not provide free WiFi, It could be purchased for, I think, around $25, This seemed excessive.

Reliable, great value, but not outstanding in any aspect. This is similar to the experience you get in most international carriers like Etihad or Delta.

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Everything you need to know for your flight to Chicago

Flights with popular airlines flying to Chicago

Flights from the other most popular airlines that fly from the United Kingdom to Chicago according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

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