This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CHI
17 Jan — 24 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Chicago are usually found in February or September, booked 46 days in advance, depart on a Wednesday or Tuesday and return on a Sunday
Cheap flight deals from London to Chicago
Enter your travel dates to find the best prices.
Cheapest flights from London to Chicago
Explore the most affordable flight options available from London to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.
Wed 24/1207:50LHR - ORD
1 stop12h 10mAer Lingus
Sun 22/316:50ORD - LHR
1 stop12h 20mAer Lingus
Deal found 17/12£467
Wed 24/1219:50LHR - ORD
2 stops26h 55mScandinavian Airlines
Sun 22/320:20ORD - LHR
2 stops17h 30mScandinavian Airlines
Deal found 17/12£502
Fri 26/1208:50LHR - ORD
1 stop11h 10mAer Lingus
Thu 22/121:00ORD - LHR
1 stop12h 35mAer Lingus
Deal found 18/12£503
Tue 23/1217:25LHR - ORD
1 stop27h 30mIberia
Thu 15/118:25ORD - LHR
Nonstop7h 50mIberia
Deal found 17/12£505
Thu 25/1214:10LHR - ORD
Nonstop8h 50mBritish Airways
Thu 15/121:00ORD - LHR
1 stop11h 25mBritish Airways
Deal found 17/12£506
Fri 26/1214:10LHR - ORD
Nonstop8h 50mBritish Airways
Thu 22/121:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 18/12£507
Wed 24/1214:10LHR - ORD
Nonstop8h 50mBritish Airways
Sun 22/319:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 17/12£508
Fri 26/1206:40LHR - ORD
1 stop16h 05mScandinavian Airlines
Thu 22/119:20ORD - LHR
1 stop20h 20mScandinavian Airlines
Deal found 16/12£535
Thu 25/1218:30LHR - ORD
1 stop26h 55mTAP AIR PORTUGAL
Wed 31/1219:10ORD - LHR
1 stop16h 20mTAP AIR PORTUGAL
Deal found 17/12£538
Sun 28/1211:55LGW - ORD
1 stop11h 25mIcelandair
Mon 12/118:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 17/12£552
Thu 25/1219:40LGW - ORD
1 stop25h 15mIberia
Thu 15/117:40ORD - LGW
1 stop19h 20mIberia
Deal found 17/12£553
Thu 25/1216:00LGW - ORD
1 stop29h 25mTAP AIR PORTUGAL
Wed 31/1219:10ORD - LGW
1 stop13h 55mTAP AIR PORTUGAL
Deal found 16/12£570
Best flights from London to Chicago
Discover carefully curated flight deals from London to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 December 2025.
Fri 30/113:50STN - ORD
2 stops33h 30mMultiple Airlines
Fri 6/218:30ORD - STN
2 stops21h 05mMultiple Airlines
Deal found 16/12£449
Thu 8/109:20LHR - ORD
1 stop14h 23mJetBlue
Wed 18/210:00ORD - LHR
1 stop14h 55mJetBlue
Deal found 16/12£456
Fri 17/415:40LGW - ORD
1 stop12h 00mIcelandair
Tue 21/419:25ORD - LGW
1 stop13h 15mIcelandair
Deal found 17/12£458
Fri 16/108:50LHR - ORD
1 stop16h 25mBritish Airways
Sun 18/120:45ORD - LHR
Nonstop7h 40mBritish Airways
Deal found 17/12£461
Fri 20/310:20LHR - ORD
1 stop12h 25mScandinavian Airlines
Wed 22/419:15ORD - LHR
1 stop20h 25mScandinavian Airlines
Deal found 16/12£472
Tue 17/309:00LHR - ORD
1 stop13h 20mUnited Airlines
Thu 23/416:25ORD - LHR
Nonstop8h 20mUnited Airlines
Deal found 16/12£488
Mon 16/306:30LHR - MDW
2 stops17h 10mDelta
Mon 23/312:47MDW - LHR
1 stop12h 38mDelta
Deal found 16/12£524
Sat 28/216:35LGW - ORD
1 stop28h 10mTAP AIR PORTUGAL
Sun 8/321:25ORD - LGW
1 stop13h 20mTAP AIR PORTUGAL
Deal found 17/12£536
Mon 19/111:05LHR - MDW
1 stop13h 31mVirgin Atlantic
Mon 26/113:26MDW - LHR
2 stops13h 54mVirgin Atlantic
Deal found 16/12£537
Mon 2/319:10LCY - ORD
1 stop23h 35mSWISS
Mon 9/317:10ORD - LCY
1 stop14h 45mSWISS
Deal found 17/12£540
Mon 16/307:45LCY - ORD
1 stop12h 35mKLM
Mon 23/317:25ORD - LCY
1 stop9h 45mKLM
Deal found 17/12£556
Thu 22/109:00LTN - ORD
2 stops14h 20mMultiple Airlines
Thu 29/118:30ORD - LTN
2 stops15h 30mMultiple Airlines
Deal found 15/12£450
Fri 27/212:20LHR - ORD
1 stop16h 34mJetBlue
Tue 10/306:04ORD - LHR
1 stop10h 36mJetBlue
Deal found 17/12£464
Thu 19/207:05LHR - ORD
2 stops15h 40mScandinavian Airlines
Tue 24/210:36ORD - LHR
2 stops25h 04mScandinavian Airlines
Deal found 17/12£473
Mon 16/320:35LHR - ORD
1 stop26h 45mIcelandair
Sat 25/419:25ORD - LHR
1 stop10h 30mIcelandair
Deal found 16/12£475
Mon 2/307:40LHR - ORD
1 stop12h 30mUnited Airlines
Tue 10/322:05ORD - LHR
Nonstop8h 10mUnited Airlines
Deal found 15/12£491
Sat 31/114:10LHR - ORD
Nonstop8h 50mBritish Airways
Sat 7/218:25ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 17/12£493
Thu 29/109:00LTN - ORD
2 stops14h 20mMultiple Airlines
Thu 5/218:30ORD - LTN
2 stops12h 50mMultiple Airlines
Deal found 15/12£454
Wed 4/306:30LHR - MDW
2 stops17h 07mDelta
Tue 31/312:47MDW - LHR
1 stop11h 58mDelta
Deal found 17/12£526
Mon 12/119:30LHR - ORD
2 stops32h 31mScandinavian Airlines
Fri 16/119:20ORD - LHR
1 stop14h 40mScandinavian Airlines
Deal found 17/12£490
Wed 4/308:30LHR - ORD
1 stop12h 50mUnited Airlines
Tue 10/318:45ORD - LHR
Nonstop8h 10mUnited Airlines
Deal found 15/12£493
Fri 27/221:25LGW - ORD
2 stops47h 20mTAP AIR PORTUGAL
Sun 8/321:25ORD - LGW
1 stop13h 20mTAP AIR PORTUGAL
Deal found 17/12£548
Mon 12/114:00LGW - MDW
1 stop15h 09mMultiple Airlines
Fri 6/213:00MDW - LGW
1 stop15h 00mMultiple Airlines
Deal found 16/12£456
Mon 19/118:40LGW - ORD
1 stop24h 05mSWISS
Mon 26/118:35ORD - LGW
2 stops17h 15mSWISS
Deal found 17/12£553
Mon 19/107:45LCY - ORD
1 stop12h 35mVirgin Atlantic
Mon 26/110:29ORD - LCY
2 stops14h 46mVirgin Atlantic
Deal found 16/12£554
Wed 4/306:30LHR - ORD
1 stop12h 55mUnited Airlines
Tue 31/316:25ORD - LHR
Nonstop8h 20mUnited Airlines
Deal found 16/12£493
Fri 20/208:40LHR - MDW
2 stops15h 57mDelta
Wed 25/213:26MDW - LHR
2 stops12h 39mDelta
Deal found 16/12£555
Thu 22/108:40LHR - MDW
2 stops15h 56mVirgin Atlantic
Mon 26/112:48MDW - LHR
1 stop11h 37mVirgin Atlantic
Deal found 15/12£555
Tue 3/316:35LGW - ORD
1 stop28h 25mTAP AIR PORTUGAL
Wed 11/320:10ORD - LGW
1 stop13h 55mTAP AIR PORTUGAL
Deal found 17/12£562
Sat 31/107:15STN - ORD
1 stop15h 30mMultiple Airlines
Sat 7/219:20ORD - STN
1 stop11h 45mMultiple Airlines
Deal found 17/12£465
Direct flights from London to Chicago
Explore direct flight options from London to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 December 2025.
Tue 3/314:10LHR - ORD
Nonstop8h 50mFinnair
Wed 11/319:45ORD - LHR
Nonstop7h 50mFinnair
Deal found 17/12£457
Wed 14/114:10LHR - ORD
Nonstop8h 50mBritish Airways
Wed 21/117:10ORD - LHR
Nonstop7h 45mBritish Airways
Deal found 17/12£458
Sat 24/112:35LHR - ORD
Nonstop8h 50mBritish Airways
Thu 12/221:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 16/12£461
Wed 21/112:35LHR - ORD
Nonstop8h 50mAmerican Airlines
Fri 6/218:25ORD - LHR
Nonstop7h 50mAmerican Airlines
Deal found 16/12£463
Thu 12/215:45LHR - ORD
Nonstop9h 00mBritish Airways
Thu 19/221:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 16/12£464
Mon 19/112:35LHR - ORD
Nonstop8h 50mFinnair
Thu 5/220:45ORD - LHR
Nonstop7h 40mFinnair
Deal found 16/12£472
Mon 2/311:00LHR - ORD
Nonstop8h 50mIberia
Wed 11/321:45ORD - LHR
Nonstop7h 40mIberia
Deal found 17/12£473
Fri 30/114:10LHR - ORD
Nonstop8h 50mBritish Airways
Sun 1/220:45ORD - LHR
Nonstop7h 40mBritish Airways
Deal found 16/12£473
Sun 1/315:45LHR - ORD
Nonstop9h 00mBritish Airways
Sun 8/319:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 17/12£475
Thu 22/112:35LHR - ORD
Nonstop8h 50mBritish Airways
Mon 9/220:45ORD - LHR
Nonstop7h 40mBritish Airways
Deal found 16/12£476
Thu 26/211:00LHR - ORD
Nonstop8h 50mAmerican Airlines
Thu 5/318:35ORD - LHR
Nonstop7h 40mAmerican Airlines
Deal found 17/12£476
Last-minute flights from London to Chicago
Discover last-minute flight deals from London to Chicago. Data last updated 18 December 2025 and is based on user searches.
Thu 8/109:20LHR - ORD
1 stop14h 23mJetBlue
Wed 18/210:00ORD - LHR
1 stop14h 55mJetBlue
Deal found 16/12£456
Mon 12/114:00LGW - ORD
1 stop33h 52mMultiple Airlines
Fri 16/112:44ORD - LGW
1 stop15h 16mMultiple Airlines
Deal found 16/12£455
Mon 12/114:00LGW - MDW
1 stop15h 09mMultiple Airlines
Fri 6/213:00MDW - LGW
1 stop15h 00mMultiple Airlines
Deal found 16/12£456
Mon 12/119:30LHR - ORD
2 stops32h 05mScandinavian Airlines
Sat 17/119:20ORD - LHR
1 stop16h 20mScandinavian Airlines
Deal found 17/12£457
Mon 12/119:30LHR - ORD
2 stops32h 31mScandinavian Airlines
Fri 6/219:20ORD - LHR
1 stop14h 40mScandinavian Airlines
Deal found 16/12£458
Mon 19/114:00LGW - ORD
2 stops27h 47mMultiple Airlines
Mon 26/110:48ORD - LGW
1 stop17h 12mMultiple Airlines
Deal found 16/12£452
Mon 19/112:20STN - ORD
2 stops35h 00mMultiple Airlines
Mon 26/118:30ORD - STN
2 stops15h 15mMultiple Airlines
Deal found 17/12£456
Tue 20/119:30LHR - ORD
1 stop27h 15mScandinavian Airlines
Tue 7/407:00ORD - LHR
2 stops28h 40mScandinavian Airlines
Deal found 16/12£453
Thu 22/116:30STN - ORD
2 stops30h 15mMultiple Airlines
Thu 29/119:10ORD - STN
2 stops20h 10mMultiple Airlines
Deal found 16/12£455
Thu 22/109:10LCY - ORD
1 stop16h 05mBritish Airways
Mon 26/121:00ORD - LCY
1 stop15h 35mBritish Airways
Deal found 16/12£457
Fri 30/113:50STN - ORD
2 stops33h 30mMultiple Airlines
Fri 6/218:30ORD - STN
2 stops21h 05mMultiple Airlines
Deal found 16/12£449
Fri 30/106:50LCY - ORD
1 stop18h 25mBritish Airways
Mon 2/221:00ORD - LCY
1 stop15h 35mBritish Airways
Deal found 16/12£458
One-way flights from London to Chicago
Search for one-way flight options from London to Chicago. Find affordable one-way fares based on user searches. Data last updated 18 December 2025.
Fri 17/409:15LCY - ORD
1 stop11h 35mLufthansa
Deal found 17/12£393
Tue 13/112:20LHR - ORD
1 stop13h 16mJetBlue
Deal found 16/12£393
Thu 22/106:00LTN - ORD
1 stop17h 20mMultiple Airlines
Deal found 16/12£393
Thu 22/119:35LGW - MDW
3 stops47h 11mMultiple Airlines
Deal found 15/12£394
Sun 15/306:10LGW - ORD
2 stops17h 45mMultiple Airlines
Deal found 16/12£394
Mon 23/213:50LTN - ORD
1 stop11h 25mMultiple Airlines
Deal found 17/12£394
Mon 23/213:30STN - ORD
1 stop11h 45mMultiple Airlines
Deal found 17/12£394
Sun 26/411:45LHR - MDW
1 stop12h 46mVirgin Atlantic
Deal found 17/12£394
Thu 29/119:35LGW - MDW
3 stops47h 11mMultiple Airlines
Deal found 17/12£395
Fri 13/218:45LGW - ORD
1 stop24h 00mSWISS
Deal found 17/12£395
Sat 18/409:00LCY - ORD
1 stop12h 55mSWISS
Deal found 17/12£395
Sun 18/114:50LHR - ORD
2 stops25h 53mMultiple Airlines
Deal found 16/12£395
Find flight deals from London to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 December 2025.
Customise your flight search to find flights from London to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from London to Chicago that are best for you.
Fly from
London
Fly to
Chicago
Route
Depart
Return
Price
LondonChicago
STN - ORD
STNORD
London Stansted
Fri 30/1
13:50-17:20
2 stops33h 30m
Chicago O'Hare Intl
Fri 6/2
18:30-21:35
2 stops21h 05m
£449
LondonChicago
LTN - ORD
LTNORD
London Luton
Thu 22/1
09:00-17:20
2 stops14h 20m
Chicago O'Hare Intl
Thu 29/1
18:30-16:00
2 stops15h 30m
£450
LondonChicago
LTN - ORD
LTNORD
London Luton
Thu 29/1
09:00-17:20
2 stops14h 20m
Chicago O'Hare Intl
Thu 5/2
18:30-13:20
2 stops12h 50m
£454
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 8/1
09:20-17:43
1 stop14h 23m
Chicago O'Hare Intl
Wed 18/2
10:00-06:55
1 stop14h 55m
£456
LondonChicago
LGW - MDW
LGWMDW
London Gatwick
Mon 12/1
14:00-23:09
1 stop15h 09m
Chicago Midway
Fri 6/2
13:00-10:00
1 stop15h 00m
£456
LondonChicago
LGW - ORD
LGWORD
London Gatwick
Fri 17/4
15:40-21:40
1 stop12h 00m
Chicago O'Hare Intl
Tue 21/4
19:25-14:40
1 stop13h 15m
£458
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Fri 16/1
08:50-19:15
1 stop16h 25m
Chicago O'Hare Intl
Sun 18/1
20:45-10:25
Nonstop7h 40m
£461
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Fri 27/2
12:20-22:54
1 stop16h 34m
Chicago O'Hare Intl
Tue 10/3
06:04-21:40
1 stop10h 36m
£464
LondonChicago
STN - ORD
STNORD
London Stansted
Sat 31/1
07:15-16:45
1 stop15h 30m
Chicago O'Hare Intl
Sat 7/2
19:20-13:05
1 stop11h 45m
£465
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Fri 20/3
10:20-17:45
1 stop12h 25m
Chicago O'Hare Intl
Wed 22/4
19:15-21:40
1 stop20h 25m
£472
Flights are sorted by cheapest return flights first.
Deals found on 16/12
Showing 1-10 of 60 results
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Best time to book a flight from London to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London to Chicago
How far ahead should I book a flight from London to Chicago?
Use this chart to determine the optimal time to book a return flight from London to Chicago. Price data was last updated on 12 December 2025.
To ensure you get the cheapest price possible for a flight from London to Chicago, you should look to book at least 46 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from London to Chicago?
Currently, December is the cheapest month in which you can book a flight from London to Chicago (average of £238). Flying from London to Chicago in July is currently the most expensive (average of £501). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LON to CHI?
Find hourly flight availability from London to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2025.
It’s typically best to fly out from London to Chicago in the morning. Doing so could potentially save you 8% on the flight price compared to flying in the evening, which is usually more expensive.
What is the cheapest day to fly from London to Chicago?
Use this chart to determine the cheapest time to fly return from London to Chicago. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their London to Chicago flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from London to Chicago
Explore weekly flight availability from London to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 December 2025.
The most flights from LON to CHI are scheduled on a Wednesday (51 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (35 on average).
How much does it cost for a return flight from London to Chicago?
What’s the top stopover airport for flights from London to Chicago?
Share of one-stop return flights from London to Chicago chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 50% of one-stop itineraries from London to Chicago on Cheapflights.
What’s the cheapest stopover airport for flights from London to Chicago?
Average return fare for one-stop flights from London to Chicago, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £364.
What’s the fastest stopover option from London to Chicago?
Shortest average travel time for one-stop one-way flights from London to Chicago, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 10h 57m.
Which airport typically offers the quickest stopover for flights from London to Chicago?
Average stopover duration for one-stop one-way flights from London to Chicago, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 14m.
How often are flights from London to Chicago delayed?
About 11% of weekly flights between London and Chicago have experienced delays in the past year, with the average delay time being 172 minutes.
What is the most punctual flight time for London to Chicago flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Chicago flights?
Over the past year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated 18 December 2025.
Read reviews from past customers who have flown with Finnair, Aer Lingus, andIcelandair
from London to Chicago. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Related info for your journey
Find useful and relevant information for your journey from London to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from London to Chicago?
A quick flight from London to Chicago can take about 12h. JetBlue provides one of the quickest options available for as low as £458. Airlines will cover a distance of 3960 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London to Chicago round-trip?
Our cheapest airline available from London to Chicago is Icelandair. Our recent data shows that you can find tickets from as low as £315 on this airline. Additional options worth looking into are Virgin Atlantic and Scandinavian Airlines, starting at £346 and £361 round-trip. These flights start at 39% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from London to Chicago one-way?
To fly one-way, consider booking your trip with Scandinavian Airlines, which is currently one of the cheapest options available, starting at £264. Icelandair flights start at £286 while deals on JetBlue start at £311 one-way.
What are the most popular routes from London to Chicago?
The most popular flight routes from London to Chicago are London Heathrow - Chicago O'Hare Intl, London Heathrow - Chicago Midway and London Gatwick - Chicago O'Hare Intl.
What are the most reliable airlines from London to Chicago?
Before booking your flight to Chicago from London, check out the most reliable airlines to get you to your destination on time: Austrian Airlines (88%), Brussels Airlines (88%), Lufthansa( 88%).
What are the cheapest flights from London to Chicago?
While on average a flight from London to Chicago is generally £1,247, our data shows the cheapest flight currently is £365. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £345 for that flight.
Where are the most common stopover locations when flying from London to Chicago?
London to Chicago flights have a stopover in Reykjavik most of the time. Dublin sees the second most layovers for non-direct flights flying from London to Chicago.
What are some popular things to do or see while on a stopover in Reykjavik?
If you're on a stopover in Reykjavik and looking for things to do, consider visiting Harpa, National Cathedral, or Reykjavik Free Church. Harpa, National Cathedral, and Reykjavik Free Church are located about 23.3 mi, 23.0 mi, and 22.9 mi, respectively from Reykjavik Keflavik Intl. Those on a stopover in Reykjavik in need of a car hire can book one at Reykjavik Keflavik Intl for about £32.
What are some popular points of interest to see during a stopover in Dublin?
The majority of Dublin visitors spend their time at 3Olympia Theatre, Bord Gáis Energy Theatre, and Dublin Castle. 3Olympia Theatre, Bord Gáis Energy Theatre and Dublin Castle are located about 5.7 mi, 5.7 mi, and 5.8 mi, respectively from Dublin if you are interested in checking them out. Travellers in need of a car in Dublin can hire one for about £15 per day.
Where are the least popular stopover locations for London to Chicago flights?
London to Chicago flights have a stopover in Copenhagen least often.
Can I find deals for flights from London to Chicago that include hotel bookings?
Yes. In addition to deals on London to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Chicago.
Can I find deals for business class flights from London to Chicago?
Yes. Cheapflights offers flight deals from London to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Chicago?
Currently, December is the cheapest month in which you can book a flight from London to Chicago (average of £238). Flying from London to Chicago in July is currently the most expensive (average of £501). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Browse thousands of different options on Cheapflights for your next trip
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Fly from London to Chicago on these airlines
Choose from the following airlines for your flight from London to Chicago. Flights are based on user searches made on Cheapflights and were last updated on 18 December 2025.
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 December 2025.
Discover the top 10 airlines that operate flights from London to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 December 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Chicago?
Cheapflights helps you search for flights from London to Chicago via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from London to Chicago?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Chicago from London.
Can Cheapflights find flights from London to Chicago with no change fees?
Need flexible booking options for your flight to Chicago from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from London to Chicago become cheaper?
Not ready to book yet? You can track prices for flights from London to Chicago on Cheapflights with our Price Alert feature and get notified when better prices are available.
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