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 19/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CHI
15 Jul — 22 Jul1
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 Wednesday or Friday and return on a Sunday
Cheap flight deals from London to Chicago
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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 15 June 2026.
Sun 5/715:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Sat 11/719:25
ORD
-
LGW
1 stop10h 20m
Icelandair
Deal found 14/6£565
Wed 8/713:05
LHR
-
ORD
3 stops27h 11m
Multiple Airlines
Wed 15/709:50
ORD
-
LHR
2 stops20h 05m
Multiple Airlines
Deal found 10/6£565
Tue 1/915:15
LTN
-
ORD
2 stops33h 00m
Multiple Airlines
Sat 5/922:25
ORD
-
LTN
2 stops16h 35m
Multiple Airlines
Deal found 14/6£565
Mon 7/920:45
STN
-
ORD
2 stops30h 35m
Multiple Airlines
Wed 9/909:50
ORD
-
STN
2 stops28h 30m
Multiple Airlines
Deal found 10/6£565
Wed 26/805:35
LGW
-
ORD
2 stops19h 40m
Multiple Airlines
Wed 2/919:25
ORD
-
LGW
1 stop10h 20m
Multiple Airlines
Deal found 11/6£566
Wed 16/908:30
LHR
-
ORD
2 stops17h 42m
Air Canada
Wed 23/913:55
ORD
-
LHR
1 stop12h 40m
Air Canada
Deal found 11/6£566
Wed 9/906:15
LTN
-
ORD
1 stop13h 45m
Multiple Airlines
Thu 17/921:00
ORD
-
LTN
1 stop13h 45m
Multiple Airlines
Deal found 11/6£566
Sat 5/917:30
STN
-
ORD
2 stops33h 50m
Multiple Airlines
Wed 9/919:25
ORD
-
STN
2 stops18h 55m
Multiple Airlines
Deal found 11/6£566
Thu 27/815:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Sat 5/919:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Deal found 15/6£567
Thu 10/1209:15
LCY
-
ORD
1 stop13h 05m
Multiple Airlines
Tue 15/1222:35
ORD
-
LCY
1 stop13h 05m
Multiple Airlines
Deal found 14/6£567
Wed 7/1007:05
LHR
-
ORD
2 stops15h 05m
Scandinavian Airlines
Wed 21/1019:15
ORD
-
LHR
2 stops17h 35m
Scandinavian Airlines
Deal found 12/6£567
Tue 1/917:45
LTN
-
ORD
2 stops24h 50m
Multiple Airlines
Fri 11/915:35
ORD
-
LTN
2 stops20h 30m
Multiple Airlines
Deal found 12/6£567
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 15 June 2026.
Sat 27/611:35
LGW
-
MDW
2 stops33h 00m
Multiple Airlines
Sat 4/710:25
MDW
-
LGW
2 stops18h 55m
Multiple Airlines
Deal found 13/6£574
Sat 10/1015:15
LHR
-
ORD
Nonstop9h 00m
British Airways
Thu 15/1017:00
ORD
-
LHR
Nonstop7h 50m
British Airways
Deal found 11/6£602
Wed 30/911:05
LHR
-
ORD
Nonstop9h 05m
Lufthansa
Tue 13/1016:25
ORD
-
LHR
Nonstop8h 20m
Lufthansa
Deal found 11/6£607
Wed 7/1014:10
LHR
-
ORD
Nonstop9h 15m
United Airlines
Wed 14/1016:25
ORD
-
LHR
Nonstop8h 20m
United Airlines
Deal found 14/6£608
Thu 27/806:40
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Sat 5/907:30
ORD
-
LHR
2 stops19h 50m
Scandinavian Airlines
Deal found 13/6£612
Wed 9/906:30
LHR
-
MDW
2 stops17h 35m
Delta
Wed 23/919:13
MDW
-
LHR
1 stop11h 52m
Delta
Deal found 11/6£624
Wed 9/910:45
LHR
-
MDW
1 stop13h 46m
KLM
Wed 23/919:13
MDW
-
LHR
1 stop11h 52m
KLM
Deal found 10/6£638
Wed 7/1015:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Wed 21/1014:15
ORD
-
LGW
2 stops18h 25m
Icelandair
Deal found 12/6£656
Tue 7/709:25
LGW
-
ORD
1 stop12h 30m
SWISS
Thu 6/814:20
ORD
-
LGW
1 stop12h 05m
SWISS
Deal found 12/6£663
Mon 21/915:15
LHR
-
MDW
1 stop13h 10m
Virgin Atlantic
Fri 25/913:00
MDW
-
LHR
1 stop11h 25m
Virgin Atlantic
Deal found 12/6£669
Sun 20/906:55
STN
-
ORD
1 stop32h 45m
Turkish Airlines
Tue 13/1020:10
ORD
-
STN
1 stop38h 30m
Turkish Airlines
Deal found 11/6£681
Thu 2/711:35
LGW
-
MDW
2 stops28h 05m
Multiple Airlines
Sun 5/710:25
MDW
-
LGW
2 stops17h 25m
Multiple Airlines
Deal found 12/6£581
Thu 27/808:50
LHR
-
ORD
1 stop11h 10m
British Airways
Sat 5/921:15
ORD
-
LHR
Nonstop8h 00m
British Airways
Deal found 10/6£613
Thu 2/707:30
LHR
-
ORD
1 stop13h 25m
United Airlines
Tue 7/713:30
ORD
-
LHR
1 stop11h 45m
United Airlines
Deal found 11/6£624
Tue 1/906:30
LHR
-
MDW
2 stops16h 29m
Delta
Tue 8/910:35
MDW
-
LHR
1 stop13h 50m
Delta
Deal found 12/6£624
Wed 15/706:15
LTN
-
ORD
2 stops18h 00m
Multiple Airlines
Wed 29/719:25
ORD
-
LTN
2 stops19h 50m
Multiple Airlines
Deal found 11/6£584
Wed 16/909:20
LHR
-
MDW
1 stop12h 51m
KLM
Wed 23/910:48
MDW
-
LHR
1 stop13h 37m
KLM
Deal found 11/6£645
Sat 10/1017:45
STN
-
ORD
1 stop21h 55m
Turkish Airlines
Thu 15/1020:10
ORD
-
STN
1 stop38h 40m
Turkish Airlines
Deal found 12/6£681
Fri 4/919:15
LCY
-
ORD
1 stop23h 40m
SWISS
Fri 25/915:50
ORD
-
LCY
1 stop13h 50m
SWISS
Deal found 12/6£684
Wed 9/908:25
LCY
-
ORD
2 stops15h 42m
Virgin Atlantic
Fri 18/916:20
ORD
-
LCY
1 stop11h 10m
Virgin Atlantic
Deal found 10/6£684
Thu 25/607:30
LHR
-
ORD
1 stop13h 25m
United Airlines
Mon 29/615:53
ORD
-
LHR
1 stop12h 47m
United Airlines
Deal found 14/6£625
Wed 16/908:40
LHR
-
MDW
2 stops15h 31m
Delta
Wed 23/909:30
MDW
-
LHR
2 stops14h 55m
Delta
Deal found 14/6£625
Mon 6/709:15
LCY
-
ORD
1 stop11h 40m
Lufthansa
Thu 6/815:10
ORD
-
LCY
1 stop11h 30m
Lufthansa
Deal found 12/6£695
Thu 2/711:35
LGW
-
MDW
2 stops28h 05m
Multiple Airlines
Tue 7/710:25
MDW
-
LGW
2 stops15h 30m
Multiple Airlines
Deal found 11/6£590
Wed 9/910:00
LCY
-
ORD
1 stop10h 30m
KLM
Wed 23/916:50
ORD
-
LCY
1 stop10h 40m
KLM
Deal found 14/6£651
Wed 30/906:55
STN
-
ORD
1 stop32h 45m
Turkish Airlines
Sat 10/1011:25
ORD
-
STN
1 stop23h 15m
Turkish Airlines
Deal found 14/6£682
Sat 5/906:30
LHR
-
MDW
2 stops16h 29m
Virgin Atlantic
Sat 12/909:29
MDW
-
LHR
1 stop15h 41m
Virgin Atlantic
Deal found 14/6£686
Fri 26/606:50
LHR
-
ORD
1 stop11h 10m
United Airlines
Thu 2/713:55
ORD
-
LHR
1 stop10h 35m
United Airlines
Deal found 11/6£625
Sat 10/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Thu 15/1014:15
ORD
-
LGW
2 stops18h 25m
Icelandair
Deal found 11/6£768
Thu 1/1009:25
LGW
-
ORD
1 stop12h 30m
SWISS
Sun 11/1021:35
ORD
-
LGW
2 stops14h 15m
SWISS
Deal found 11/6£700
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 15 June 2026.
Tue 1/911:10
LHR
-
ORD
Nonstop8h 40m
British Airways
Fri 18/922:35
ORD
-
LHR
Nonstop7h 40m
British Airways
Deal found 10/6£572
Sat 5/911:10
LHR
-
ORD
Nonstop8h 40m
British Airways
Fri 18/919:05
ORD
-
LHR
Nonstop8h 00m
British Airways
Deal found 15/6£573
Sun 8/1111:00
LHR
-
ORD
Nonstop8h 50m
British Airways
Thu 19/1117:10
ORD
-
LHR
Nonstop7h 45m
British Airways
Deal found 14/6£575
Mon 31/813:10
LHR
-
ORD
Nonstop8h 45m
British Airways
Tue 8/919:05
ORD
-
LHR
Nonstop8h 00m
British Airways
Deal found 12/6£577
Tue 25/812:15
LHR
-
ORD
Nonstop8h 45m
British Airways
Tue 15/921:15
ORD
-
LHR
Nonstop8h 00m
British Airways
Deal found 13/6£578
Sat 22/814:10
LHR
-
ORD
Nonstop9h 05m
Lufthansa
Tue 8/916:25
ORD
-
LHR
Nonstop8h 20m
Lufthansa
Deal found 10/6£583
Wed 2/911:05
LHR
-
ORD
Nonstop9h 05m
Lufthansa
Mon 7/918:15
ORD
-
LHR
Nonstop8h 15m
Lufthansa
Deal found 11/6£584
Sat 10/1013:10
LHR
-
ORD
Nonstop8h 45m
British Airways
Thu 15/1019:05
ORD
-
LHR
Nonstop8h 00m
British Airways
Deal found 10/6£586
Mon 16/1116:30
LHR
-
ORD
Nonstop8h 45m
British Airways
Thu 19/1117:10
ORD
-
LHR
Nonstop7h 45m
British Airways
Deal found 11/6£590
Sat 26/909:45
LHR
-
ORD
Nonstop8h 45m
Iberia
Sat 3/1021:05
ORD
-
LHR
Nonstop7h 45m
Iberia
Deal found 11/6£595
Sat 12/908:00
LHR
-
ORD
Nonstop9h 10m
Multiple Airlines
Sun 25/1016:45
ORD
-
LHR
Nonstop8h 10m
Multiple Airlines
Deal found 11/6£596
Last-minute flights from London to Chicago
Discover last-minute flight deals from London to Chicago. Data last updated 15 June 2026 and is based on user searches.
Mon 22/612:15
LHR
-
ORD
Nonstop8h 45m
Finnair
Wed 8/714:38
ORD
-
LHR
1 stop13h 37m
Finnair
Deal found 13/6£575
Sat 27/611:35
LGW
-
MDW
2 stops33h 00m
Multiple Airlines
Thu 2/715:20
MDW
-
LGW
2 stops34h 35m
Multiple Airlines
Deal found 13/6£574
Thu 2/713:00
LGW
-
ORD
3 stops27h 16m
Multiple Airlines
Thu 9/714:15
ORD
-
LGW
2 stops18h 25m
Multiple Airlines
Deal found 14/6£574
Thu 2/713:00
LGW
-
ORD
2 stops26h 00m
Multiple Airlines
Sun 5/717:35
ORD
-
LGW
2 stops15h 05m
Multiple Airlines
Deal found 12/6£575
Sun 5/715:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Sat 11/719:25
ORD
-
LGW
1 stop10h 20m
Icelandair
Deal found 14/6£565
Thu 9/712:20
LGW
-
ORD
1 stop12h 55m
JetBlue
Thu 16/720:10
ORD
-
LGW
1 stop31h 25m
JetBlue
Deal found 10/6£571
Thu 9/715:40
LGW
-
ORD
3 stops24h 36m
Multiple Airlines
Wed 22/709:50
ORD
-
LGW
2 stops22h 50m
Multiple Airlines
Deal found 10/6£575
Fri 10/712:20
LGW
-
ORD
1 stop12h 55m
JetBlue
Fri 17/720:10
ORD
-
LGW
1 stop31h 25m
JetBlue
Deal found 14/6£569
Fri 10/712:20
LGW
-
ORD
1 stop12h 55m
JetBlue
Fri 24/720:10
ORD
-
LGW
1 stop31h 25m
JetBlue
Deal found 12/6£570
Fri 10/712:20
LGW
-
ORD
1 stop12h 55m
JetBlue
Mon 13/720:10
ORD
-
LGW
1 stop31h 25m
JetBlue
Deal found 13/6£572
Tue 14/708:50
LGW
-
ORD
2 stops17h 02m
Multiple Airlines
Tue 21/722:25
ORD
-
LGW
1 stop31h 20m
Multiple Airlines
Deal found 14/6£569
Tue 14/706:30
STN
-
ORD
2 stops19h 22m
Multiple Airlines
Tue 21/722:25
ORD
-
STN
2 stops18h 15m
Multiple Airlines
Deal found 14/6£571
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 15 June 2026.
Sun 23/819:50
SEN
-
ORD
3 stops31h 35m
Multiple Airlines
Deal found 14/6£446
Tue 23/621:35
LGW
-
MDW
3 stops26h 56m
Multiple Airlines
Deal found 11/6£446
Tue 23/606:15
LGW
-
ORD
3 stops38h 15m
Multiple Airlines
Deal found 11/6£446
Sat 19/906:15
LHR
-
ORD
2 stops21h 45m
British Airways
Deal found 10/6£446
Sat 11/720:35
LTN
-
ORD
2 stops47h 55m
Multiple Airlines
Deal found 10/6£446
Wed 5/808:05
STN
-
ORD
2 stops37h 05m
Multiple Airlines
Deal found 13/6£446
Fri 10/710:45
LGW
-
MDW
3 stops52h 55m
Multiple Airlines
Deal found 13/6£446
Sat 20/614:00
LGW
-
ORD
1 stop15h 19m
Multiple Airlines
Deal found 12/6£446
Wed 8/706:45
LCY
-
ORD
3 stops38h 25m
Multiple Airlines
Deal found 12/6£446
Fri 27/1107:00
LHR
-
ORD
2 stops15h 20m
SWISS
Deal found 10/6£446
Sun 26/706:45
STN
-
ORD
3 stops39h 55m
Multiple Airlines
Deal found 12/6£446
Tue 23/606:30
SEN
-
ORD
2 stops39h 30m
Multiple Airlines
Deal found 12/6£447
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 15 June 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 15 June 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
LondonChicago
LGW - MDW
LGWMDW
London Gatwick
Sat 27/6
11:35-14:35
2 stops33h 00m
Chicago Midway
Sat 4/7
10:25-11:20
2 stops18h 55m
£574
LondonChicago
LGW - MDW
LGWMDW
London Gatwick
Thu 2/7
11:35-09:40
2 stops28h 05m
Chicago Midway
Sun 5/7
10:25-09:50
2 stops17h 25m
£581
LondonChicago
LTN - ORD
LTNORD
London Luton
Wed 15/7
06:15-18:15
2 stops18h 00m
Chicago O'Hare Intl
Wed 29/7
19:25-21:15
2 stops19h 50m
£584
LondonChicago
LGW - MDW
LGWMDW
London Gatwick
Thu 2/7
11:35-09:40
2 stops28h 05m
Chicago Midway
Tue 7/7
10:25-07:55
2 stops15h 30m
£590
Fastest return journey
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Sat 10/10
15:15-18:15
Nonstop9h 00m
Chicago O'Hare Intl
Thu 15/10
17:00-06:50
Nonstop7h 50m
£602
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Wed 30/9
11:05-14:10
Nonstop9h 05m
Chicago O'Hare Intl
Tue 13/10
16:25-06:45
Nonstop8h 20m
£607
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Wed 7/10
14:10-17:25
Nonstop9h 15m
Chicago O'Hare Intl
Wed 14/10
16:25-06:45
Nonstop8h 20m
£608
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 27/8
06:40-16:10
1 stop15h 30m
Chicago O'Hare Intl
Sat 5/9
07:30-09:20
2 stops19h 50m
£612
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 27/8
08:50-14:00
1 stop11h 10m
Chicago O'Hare Intl
Sat 5/9
21:15-11:15
Nonstop8h 00m
£613
LondonChicago
LHR - MDW
LHRMDW
London Heathrow
Wed 9/9
06:30-18:05
2 stops17h 35m
Chicago Midway
Wed 23/9
19:13-13:05
1 stop11h 52m
£624
Flights are sorted by cheapest return flights first.
Deals found on 10/6
Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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
LHR-ORD
SEN-ORD
LHR-MDW
LCY-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
LHR-ORD
SEN-ORD
LHR-MDW
LCY-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 £439). Flying from London to Chicago in January is currently the most expensive (average of £1,313). 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 15 June 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 15 June 2026.
The most flights from LON to CHI are scheduled on a Monday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (52 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.
Zurich (ZRH) is the most affordable one-stop option, with an average return flight price of £360.
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 179 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 Tuesday 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 6% 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 15 June 2026.
Read reviews from past customers who have flown with United Airlines,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.
Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
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. British Airways provides one of the quickest options available for as low as £602. Airlines will cover a distance of 3939 mi. Most flights are nonstop.
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 £303 on this airline. Additional options worth looking into are Icelandair and Aer Lingus, starting at £349 and £364 round-trip. These flights start at 45% 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 £326 while deals on TAP AIR PORTUGAL start at £340 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 City - 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 (93%), Malaysia Airlines (93%), Air Canada( 91%).
What are the cheapest flights from London to Chicago?
While on average a flight from London to Chicago is generally £1,070, our data shows the cheapest flight currently is £430. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £443 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. Copenhagen 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 £21.
What are some popular points of interest to see during a stopover in Copenhagen?
The majority of Copenhagen visitors spend their time at Tivoli, Rådhuspladsen, and Amager Square. Tivoli, Rådhuspladsen and Amager Square are located about 5.3 mi, 5.2 mi, and 5.2 mi, respectively from Kastrup Copenhagen if you are interested in checking them out. Travellers in need of a car in Copenhagen can hire one for about £28 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 £439). Flying from London to Chicago in January is currently the most expensive (average of £1,313). 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 15 June 2026.
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 June 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 15 June 2026.
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.
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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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