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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CHI
22 Jun — 29 Jun1
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 November, booked 35 days in advance, depart on a Thursday or Wednesday and return on a Sunday
Cheap flight deals from London to Chicago
Enter your travel dates to find the best prices.
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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 23 May 2026.
Tue 8/913:00
LGW
-
ORD
1 stop11h 15m
Icelandair
Wed 16/922:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Deal found 17/5£513
Fri 9/1013:05
LHR
-
ORD
1 stop14h 20m
Icelandair
Fri 16/1022:25
ORD
-
LHR
1 stop15h 55m
Icelandair
Deal found 18/5£513
Thu 8/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Tue 13/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Deal found 18/5£514
Wed 27/515:00
STN
-
ORD
2 stops33h 15m
Multiple Airlines
Mon 1/622:25
ORD
-
STN
2 stops14h 25m
Multiple Airlines
Deal found 18/5£518
Sat 24/1006:40
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Sat 7/1119:15
ORD
-
LHR
2 stops15h 10m
Scandinavian Airlines
Deal found 18/5£520
Wed 2/921:15
LGW
-
ORD
2 stops21h 25m
TAP AIR PORTUGAL
Wed 23/918:00
ORD
-
LGW
1 stop14h 00m
TAP AIR PORTUGAL
Deal found 18/5£521
Fri 2/1007:05
LHR
-
ORD
2 stops15h 05m
Scandinavian Airlines
Mon 5/1019:15
ORD
-
LHR
2 stops15h 10m
Scandinavian Airlines
Deal found 21/5£521
Fri 12/609:40
LGW
-
ORD
2 stops16h 36m
Multiple Airlines
Tue 16/607:25
ORD
-
LGW
1 stop21h 20m
Multiple Airlines
Deal found 21/5£522
Wed 14/1007:05
LHR
-
ORD
2 stops15h 05m
Scandinavian Airlines
Wed 28/1020:15
ORD
-
LHR
2 stops17h 35m
Scandinavian Airlines
Deal found 23/5£522
Wed 14/1016:25
LGW
-
ORD
1 stop26h 15m
TAP AIR PORTUGAL
Wed 21/1018:00
ORD
-
LGW
2 stops35h 20m
TAP AIR PORTUGAL
Deal found 21/5£523
Fri 9/1017:00
LHR
-
ORD
1 stop29h 10m
Scandinavian Airlines
Sun 18/1019:15
ORD
-
LHR
2 stops20h 20m
Scandinavian Airlines
Deal found 20/5£523
Tue 15/916:25
LGW
-
ORD
1 stop29h 35m
TAP AIR PORTUGAL
Wed 30/918:00
ORD
-
LGW
2 stops20h 30m
TAP AIR PORTUGAL
Deal found 20/5£523
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 23 May 2026.
Mon 7/908:00
LHR
-
ORD
Nonstop9h 05m
Austrian Airlines
Tue 29/916:25
ORD
-
LHR
Nonstop8h 20m
Austrian Airlines
Deal found 19/5£526
Mon 1/611:10
SEN
-
ORD
2 stops31h 25m
Multiple Airlines
Sun 7/608:45
ORD
-
SEN
2 stops19h 45m
Multiple Airlines
Deal found 18/5£578
Tue 8/913:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Sat 3/1019:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Deal found 20/5£589
Sun 13/919:50
LHR
-
ORD
2 stops26h 20m
Scandinavian Airlines
Sat 19/919:15
ORD
-
LHR
2 stops15h 10m
Scandinavian Airlines
Deal found 20/5£614
Mon 14/920:05
LHR
-
ORD
1 stop22h 30m
SWISS
Fri 25/919:05
ORD
-
LHR
1 stop15h 20m
SWISS
Deal found 18/5£616
Mon 21/906:15
LHR
-
MDW
2 stops18h 16m
Virgin Atlantic
Mon 28/910:35
MDW
-
LHR
2 stops14h 35m
Virgin Atlantic
Deal found 19/5£629
Wed 7/1008:00
LHR
-
ORD
Nonstop9h 10m
United Airlines
Tue 13/1016:25
ORD
-
LHR
Nonstop8h 20m
United Airlines
Deal found 18/5£633
Tue 8/913:25
LHR
-
MDW
1 stop14h 21m
KLM
Tue 29/913:05
MDW
-
LHR
1 stop11h 20m
KLM
Deal found 20/5£638
Tue 22/917:35
STN
-
ORD
1 stop22h 05m
Turkish Airlines
Tue 29/911:25
ORD
-
STN
1 stop16h 30m
Turkish Airlines
Deal found 22/5£673
Wed 15/713:45
LHR
-
ORD
1 stop28h 55m
TAP AIR PORTUGAL
Sun 30/818:00
ORD
-
LHR
1 stop34h 20m
TAP AIR PORTUGAL
Deal found 18/5£674
Wed 24/606:30
LHR
-
ORD
2 stops15h 56m
Delta
Mon 6/710:05
ORD
-
LHR
1 stop14h 40m
Delta
Deal found 20/5£724
Mon 12/1008:25
LTN
-
ORD
1 stop17h 25m
Multiple Airlines
Mon 19/1021:50
ORD
-
LTN
1 stop15h 15m
Multiple Airlines
Deal found 20/5£589
Thu 27/807:05
LHR
-
ORD
2 stops15h 05m
Scandinavian Airlines
Sat 5/919:15
ORD
-
LHR
2 stops17h 35m
Scandinavian Airlines
Deal found 22/5£616
Mon 21/910:25
LGW
-
ORD
2 stops17h 11m
Virgin Atlantic
Mon 28/907:00
ORD
-
LGW
2 stops20h 40m
Virgin Atlantic
Deal found 19/5£639
Fri 25/908:30
LTN
-
ORD
2 stops15h 45m
Multiple Airlines
Sun 27/922:25
ORD
-
LTN
2 stops17h 55m
Multiple Airlines
Deal found 22/5£602
Sat 10/1017:45
STN
-
ORD
1 stop21h 55m
Turkish Airlines
Thu 15/1011:25
ORD
-
STN
1 stop16h 30m
Turkish Airlines
Deal found 22/5£683
Tue 16/608:45
LHR
-
ORD
1 stop33h 50m
United Airlines
Tue 30/618:45
ORD
-
LHR
Nonstop8h 15m
United Airlines
Deal found 19/5£689
Fri 25/908:25
LCY
-
ORD
1 stop11h 50m
KLM
Sun 27/916:20
ORD
-
LCY
1 stop11h 10m
KLM
Deal found 22/5£710
Tue 18/821:15
LGW
-
ORD
2 stops24h 45m
TAP AIR PORTUGAL
Thu 20/819:50
ORD
-
LGW
1 stop31h 55m
TAP AIR PORTUGAL
Deal found 17/5£713
Tue 7/708:40
LHR
-
MDW
2 stops15h 38m
Delta
Tue 14/709:19
MDW
-
LHR
1 stop15h 51m
Delta
Deal found 20/5£724
Wed 23/908:25
LTN
-
ORD
1 stop17h 25m
Multiple Airlines
Wed 30/917:10
ORD
-
LTN
1 stop15h 25m
Multiple Airlines
Deal found 20/5£609
Sun 13/908:40
LHR
-
MDW
2 stops19h 06m
Virgin Atlantic
Fri 25/910:35
MDW
-
LHR
1 stop20h 40m
Virgin Atlantic
Deal found 18/5£680
Wed 7/1007:05
LHR
-
ORD
2 stops15h 05m
Scandinavian Airlines
Tue 13/1019:15
ORD
-
LHR
2 stops17h 35m
Scandinavian Airlines
Deal found 18/5£690
Mon 6/707:30
LHR
-
ORD
1 stop13h 25m
United Airlines
Mon 13/713:30
ORD
-
LHR
1 stop12h 50m
United Airlines
Deal found 22/5£695
Wed 8/709:20
LHR
-
MDW
1 stop12h 55m
Delta
Wed 22/717:10
MDW
-
LHR
1 stop14h 05m
Delta
Deal found 19/5£737
Fri 12/611:35
LGW
-
MDW
2 stops28h 00m
Multiple Airlines
Tue 16/610:15
MDW
-
LGW
2 stops15h 40m
Multiple Airlines
Deal found 21/5£613
Thu 4/619:15
LCY
-
ORD
1 stop23h 40m
SWISS
Sun 7/621:40
ORD
-
LCY
2 stops15h 00m
SWISS
Deal found 21/5£829
Tue 22/916:25
LGW
-
ORD
1 stop29h 35m
TAP AIR PORTUGAL
Tue 29/917:07
ORD
-
LGW
3 stops34h 38m
TAP AIR PORTUGAL
Deal found 22/5£755
Mon 6/709:20
LCY
-
ORD
2 stops16h 11m
KLM
Mon 13/714:07
ORD
-
LCY
2 stops13h 23m
KLM
Deal found 22/5£755
Mon 15/606:30
LHR
-
MDW
2 stops17h 48m
Virgin Atlantic
Mon 29/613:49
MDW
-
LHR
1 stop17h 16m
Virgin Atlantic
Deal found 18/5£720
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 23 May 2026.
Mon 7/908:00
LHR
-
ORD
Nonstop9h 05m
Austrian Airlines
Tue 29/916:25
ORD
-
LHR
Nonstop8h 20m
Austrian Airlines
Deal found 19/5£526
Sun 11/1013:10
LHR
-
ORD
Nonstop8h 45m
British Airways
Fri 16/1017:00
ORD
-
LHR
Nonstop7h 50m
British Airways
Deal found 18/5£538
Thu 3/915:15
LHR
-
ORD
Nonstop9h 00m
British Airways
Sun 6/921:15
ORD
-
LHR
Nonstop8h 00m
British Airways
Deal found 19/5£555
Wed 8/713:10
LHR
-
ORD
Nonstop8h 45m
British Airways
Mon 20/717:00
ORD
-
LHR
Nonstop7h 50m
British Airways
Deal found 21/5£557
Wed 23/908:00
LHR
-
ORD
Nonstop9h 10m
Austrian Airlines
Sun 4/1021:30
ORD
-
LHR
Nonstop8h 25m
Austrian Airlines
Deal found 20/5£558
Wed 9/908:00
LHR
-
ORD
Nonstop9h 10m
Lufthansa
Wed 23/916:25
ORD
-
LHR
Nonstop8h 20m
Lufthansa
Deal found 18/5£572
Wed 24/611:10
LHR
-
ORD
Nonstop8h 40m
British Airways
Tue 7/719:05
ORD
-
LHR
Nonstop8h 00m
British Airways
Deal found 18/5£577
Mon 9/1110:25
LHR
-
ORD
Nonstop9h 20m
Lufthansa
Wed 18/1121:50
ORD
-
LHR
Nonstop8h 10m
Lufthansa
Deal found 18/5£583
Wed 2/911:05
LHR
-
ORD
Nonstop9h 05m
Lufthansa
Wed 23/916:25
ORD
-
LHR
Nonstop8h 20m
Lufthansa
Deal found 18/5£584
Tue 1/911:05
LHR
-
ORD
Nonstop9h 05m
Lufthansa
Mon 21/921:30
ORD
-
LHR
Nonstop8h 25m
Lufthansa
Deal found 19/5£585
Wed 23/908:00
LHR
-
ORD
Nonstop9h 10m
Lufthansa
Thu 1/1016:25
ORD
-
LHR
Nonstop8h 20m
Lufthansa
Deal found 19/5£586
Tue 22/913:10
LHR
-
ORD
Nonstop8h 45m
British Airways
Tue 17/1120:40
ORD
-
LHR
Nonstop7h 45m
British Airways
Deal found 18/5£592
Last-minute flights from London to Chicago
Discover last-minute flight deals from London to Chicago. Data last updated 23 May 2026 and is based on user searches.
Wed 27/515:00
STN
-
ORD
2 stops33h 15m
Multiple Airlines
Mon 1/622:25
ORD
-
STN
2 stops14h 25m
Multiple Airlines
Deal found 18/5£518
Fri 29/513:05
LHR
-
ORD
1 stop14h 20m
Icelandair
Tue 2/619:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Deal found 18/5£536
Mon 1/609:25
LGW
-
ORD
2 stops18h 00m
Multiple Airlines
Thu 4/619:25
ORD
-
LGW
3 stops31h 05m
Multiple Airlines
Deal found 22/5£537
Tue 2/621:50
LTN
-
ORD
1 stop21h 20m
Multiple Airlines
Tue 23/615:00
ORD
-
LTN
1 stop24h 05m
Multiple Airlines
Deal found 22/5£546
Thu 4/606:40
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Sun 7/219:15
ORD
-
LHR
1 stop17h 15m
Scandinavian Airlines
Deal found 19/5£547
Fri 5/606:40
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Sun 7/219:15
ORD
-
LHR
1 stop16h 25m
Scandinavian Airlines
Deal found 20/5£535
Wed 10/613:45
STN
-
ORD
2 stops29h 20m
Multiple Airlines
Wed 23/922:25
ORD
-
STN
2 stops16h 05m
Multiple Airlines
Deal found 21/5£540
Wed 10/610:55
LGW
-
ORD
2 stops32h 10m
Multiple Airlines
Wed 23/922:25
ORD
-
LGW
1 stop10h 15m
Multiple Airlines
Deal found 21/5£543
Fri 12/609:40
LGW
-
ORD
2 stops16h 36m
Multiple Airlines
Tue 16/607:25
ORD
-
LGW
1 stop21h 20m
Multiple Airlines
Deal found 21/5£522
Tue 16/620:35
STN
-
ORD
2 stops22h 35m
Multiple Airlines
Mon 29/615:00
ORD
-
STN
2 stops23h 10m
Multiple Airlines
Deal found 21/5£529
Mon 22/615:20
LHR
-
ORD
1 stop14h 10m
United Airlines
Mon 13/713:30
ORD
-
LHR
1 stop11h 25m
United Airlines
Deal found 21/5£538
Mon 22/608:30
LHR
-
ORD
1 stop14h 27m
Air Canada
Thu 9/714:15
ORD
-
LHR
1 stop10h 20m
Air Canada
Deal found 21/5£544
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 23 May 2026.
Fri 5/612:40
LGW
-
MDW
1 stop26h 55m
Multiple Airlines
Deal found 18/5£427
Fri 11/919:15
LCY
-
ORD
1 stop23h 20m
SWISS
Deal found 18/5£427
Fri 13/1106:00
LHR
-
ORD
2 stops17h 55m
Multiple Airlines
Deal found 19/5£427
Thu 15/1018:05
STN
-
ORD
2 stops31h 45m
Multiple Airlines
Deal found 18/5£427
Fri 12/608:40
LHR
-
MDW
3 stops30h 55m
Multiple Airlines
Deal found 18/5£427
Thu 4/612:40
LGW
-
MDW
1 stop26h 55m
Multiple Airlines
Deal found 18/5£428
Sun 27/920:05
SEN
-
ORD
3 stops29h 10m
Multiple Airlines
Deal found 19/5£428
Tue 14/706:00
LHR
-
ORD
1 stop12h 35m
SWISS
Deal found 18/5£428
Tue 18/814:45
LTN
-
ORD
2 stops31h 15m
Multiple Airlines
Deal found 19/5£428
Mon 22/611:35
LGW
-
MDW
2 stops28h 05m
Multiple Airlines
Deal found 19/5£429
Sun 14/620:50
LHR
-
ORD
3 stops29h 41m
Multiple Airlines
Deal found 19/5£429
Fri 19/620:15
LCY
-
MDW
3 stops43h 25m
Multiple Airlines
Deal found 18/5£429
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 23 May 2026.
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 23 May 2026.
Use the filters below to find and compare flights from London to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
Fastest return journey
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Mon 7/9
08:00-11:05
Nonstop9h 05m
Chicago O'Hare Intl
Tue 29/9
16:25-06:45
Nonstop8h 20m
£526
LondonChicago
SEN - ORD
SENORD
London Southend
Mon 1/6
11:10-12:35
2 stops31h 25m
Chicago O'Hare Intl
Sun 7/6
08:45-10:30
2 stops19h 45m
£578
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Tue 8/9
13:05-18:15
1 stop11h 10m
Chicago O'Hare Intl
Sat 3/10
19:25-11:55
1 stop10h 30m
£589
LondonChicago
LTN - ORD
LTNORD
London Luton
Mon 12/10
08:25-19:50
1 stop17h 25m
Chicago O'Hare Intl
Mon 19/10
21:50-19:05
1 stop15h 15m
£589
LondonChicago
LTN - ORD
LTNORD
London Luton
Fri 25/9
08:30-18:15
2 stops15h 45m
Chicago O'Hare Intl
Sun 27/9
22:25-22:20
2 stops17h 55m
£602
LondonChicago
LTN - ORD
LTNORD
London Luton
Wed 23/9
08:25-19:50
1 stop17h 25m
Chicago O'Hare Intl
Wed 30/9
17:10-14:35
1 stop15h 25m
£609
LondonChicago
LGW - MDW
LGWMDW
London Gatwick
Fri 12/6
11:35-09:35
2 stops28h 00m
Chicago Midway
Tue 16/6
10:15-07:55
2 stops15h 40m
£613
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Sun 13/9
19:50-16:10
2 stops26h 20m
Chicago O'Hare Intl
Sat 19/9
19:15-16:25
2 stops15h 10m
£614
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Mon 14/9
20:05-12:35
1 stop22h 30m
Chicago O'Hare Intl
Fri 25/9
19:05-16:25
1 stop15h 20m
£616
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 27/8
07:05-16:10
2 stops15h 05m
Chicago O'Hare Intl
Sat 5/9
19:15-18:50
2 stops17h 35m
£616
Flights are sorted by cheapest return flights first.
Deals found on 22/5
Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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6
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.
LON-CHI
LGW-ORD
LHR-ORD
STN-ORD
LTN-ORD
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
LON-CHI
LGW-ORD
LHR-ORD
STN-ORD
LTN-ORD
What is the cheapest month to book a flight from London to Chicago?
Currently, September is the cheapest month in which you can book a flight from London to Chicago (average of £430). Flying from London to Chicago in January is currently the most expensive (average of £1,227). 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 23 May 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Chicago as you normally would.
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 23 May 2026.
The most flights from LON to CHI are scheduled on a Wednesday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (49 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 54% 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.
Frankfurt am Main (FRA) is the most affordable one-stop option, with an average return flight price of £374.
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 50m.
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 16m.
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 180 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?
Wednesday 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.
How far ahead should I book a flight from London to Chicago?
To ensure you get the cheapest price possible for a flight from London to Chicago, you should look to book at least 34 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.
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 23 May 2026.
Read reviews from past customers who have flown with Austrian Airlines,United Airlines, 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.
Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
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 9h 05m. Austrian Airlines provides one of the quickest options available for as low as £526. Airlines will cover a distance of 3939 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 Virgin Atlantic. Our recent data shows that you can find tickets from as low as £345 on this airline. Additional options worth looking into are Icelandair and Aer Lingus, starting at £349 and £364 round-trip. These flights start at 35% 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 JetBlue, which is currently one of the cheapest options available, starting at £311. Icelandair flights start at £325 while deals on TAP AIR PORTUGAL start at £336 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 Gatwick - Chicago O'Hare Intl and London Stansted - 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: SriLankan Airlines (94%), Air Canada (90%), Austrian Airlines( 90%).
What are the cheapest flights from London to Chicago?
While on average a flight from London to Chicago is generally £1,199, our data shows the cheapest flight currently is £453. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £415 for that flight.
Where are the most common stopover locations when flying from London to Chicago?
London to Chicago flights have a stopover in Dublin most of the time. Reykjavik 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 Dublin?
If you're on a stopover in Dublin and looking for things to do, consider visiting 3Olympia Theatre, Bord Gáis Energy Theatre, or Button Factory. 3Olympia Theatre, Bord Gáis Energy Theatre, and Button Factory are located about 5.7 mi, 5.7 mi, and 5.7 mi, respectively from Dublin. Those on a stopover in Dublin in need of a car hire can book one at Dublin for about £19.
What are some popular points of interest to see during a stopover in Reykjavik?
The majority of Reykjavik visitors spend their time at Harpa, National Cathedral, and 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 if you are interested in checking them out. Travellers in need of a car in Reykjavik can hire one for about £38 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, September is the cheapest month in which you can book a flight from London to Chicago (average of £430). Flying from London to Chicago in January is currently the most expensive (average of £1,227). 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.
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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 23 May 2026.
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 23 May 2026.
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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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