$308+ Cheap flights from Chicago (CHI) to London (LON)
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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LON
Sep 19 — Sep 261
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to London with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Chicago to London are usually found in February or January, booked 33 days in advance, depart on a Tuesday or Wednesday and return on a Friday
Cheap flight deals from Chicago to London
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Cheapest flights from Chicago to LondonExplore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2026.
Explore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:15 pm -
2 stops42h 40m
Wed 10/146:40 am -
1 stop15h 30m
Deal found 8/19![Scandinavian Airlines logo]()
$661
This Mytrip deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:15 pm -
2 stops18h 55m
Wed 11/255:40 pm -
2 stops29h 05m
Deal found 8/19![Multiple Airlines logo]()
$663
This Mytrip deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:30 pm -
2 stops18h 20m
Sun 11/155:30 pm -
2 stops29h 50m
Deal found 8/19![Multiple Airlines logo]()
$666
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:40 am -
2 stops44h 20m
Sun 11/112:35 pm -
1 stop26h 11m
Deal found 8/19![Multiple Airlines logo]()
$667
This Mytrip deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:30 pm -
2 stops22h 45m
Fri 11/205:55 am -
2 stops17h 25m
Deal found 8/15![Multiple Airlines logo]()
$667
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:31 pm -
1 stop33h 29m
Wed 12/910:10 am -
1 stop33h 01m
Deal found 8/19![Multiple Airlines logo]()
$668
This Booking.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:15 pm -
1 stop32h 05m
Wed 11/186:40 am -
2 stops16h 05m
Deal found 8/15![Scandinavian Airlines logo]()
$670
This Mytrip deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:15 pm -
2 stops18h 50m
Sun 11/88:50 pm -
3 stops25h 55m
Deal found 8/18![Multiple Airlines logo]()
$670
This Scandinavian Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:15 pm -
2 stops15h 45m
Mon 10/56:40 am -
1 stop15h 30m
Deal found 8/17![Scandinavian Airlines logo]()
$671
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:44 pm -
1 stop32h 06m
Wed 11/1810:10 am -
1 stop19h 40m
Deal found 8/16![Multiple Airlines logo]()
$671
This Gotogate deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:15 pm -
1 stop14h 45m
Fri 10/95:00 pm -
1 stop29h 10m
Deal found 8/19![Scandinavian Airlines logo]()
$672
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:44 pm -
1 stop32h 06m
Tue 11/1710:10 am -
1 stop19h 40m
Deal found 8/16![Multiple Airlines logo]()
$672
Best flights from Chicago to LondonDiscover carefully curated flight deals from Chicago to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2026.
Discover carefully curated flight deals from Chicago to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2026.
This Mytrip deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:30 pm -
2 stops16h 50m
Wed 11/117:45 am -
2 stops15h 35m
Deal found 8/19![Multiple Airlines logo]()
$721
This Icelandair deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/66:30 pm -
1 stop10h 20m
Fri 2/2612:15 pm -
1 stop11h 05m
Deal found 8/18![Icelandair logo]()
$737
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:00 pm -
2 stops33h 00m
Tue 11/34:35 pm -
1 stop28h 55m
Deal found 8/15![TAP AIR PORTUGAL logo]()
$788
This Turkish Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:10 pm -
1 stop38h 30m
Wed 9/305:45 pm -
1 stop21h 55m
Deal found 8/16![Turkish Airlines logo]()
$834
This Virgin Atlantic deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:30 am -
2 stops15h 20m
Tue 12/810:00 am -
2 stops18h 56m
Deal found 8/16![Virgin Atlantic logo]()
$872
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/103:00 pm -
1 stop10h 50m
Wed 2/2411:45 am -
2 stops14h 52m
Deal found 8/18![Delta logo]()
$877
This Scandinavian Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:15 pm -
1 stop32h 05m
Fri 9/256:40 am -
1 stop15h 30m
Deal found 8/16![Scandinavian Airlines logo]()
$885
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:25 pm -
Nonstop8h 20m
Mon 10/1912:10 pm -
1 stop30h 25m
Deal found 8/16![United Airlines logo]()
$902
This Finnair deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:55 pm -
Nonstop7h 45m
Wed 10/79:45 am -
Nonstop8h 45m
Deal found 8/19![Finnair logo]()
$902
This KLM deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/104:25 pm -
1 stop10h 25m
Wed 12/239:20 am -
1 stop11h 05m
Deal found 8/17![KLM logo]()
$932
This Mytrip deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:55 pm -
2 stops24h 55m
Sat 11/79:30 pm -
2 stops24h 00m
Deal found 8/19![Multiple Airlines logo]()
$729
This Turkish Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:10 pm -
1 stop38h 30m
Tue 10/65:35 pm -
1 stop22h 05m
Deal found 8/15![Turkish Airlines logo]()
$835
This Mytrip deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:15 pm -
2 stops17h 50m
Fri 10/92:50 pm -
2 stops31h 20m
Deal found 8/19![Multiple Airlines logo]()
$786
This Icelandair deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:25 pm -
1 stop13h 10m
Thu 10/223:40 pm -
1 stop32h 35m
Deal found 8/17![Icelandair logo]()
$890
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:28 am -
1 stop12h 57m
Tue 12/18:40 am -
2 stops15h 24m
Deal found 8/16![Delta logo]()
$897
This Virgin Atlantic deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:05 pm -
2 stops13h 25m
Wed 11/49:20 am -
1 stop11h 05m
Deal found 8/18![Virgin Atlantic logo]()
$906
This Turkish Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/38:15 pm -
1 stop31h 40m
Wed 2/1010:55 am -
1 stop37h 25m
Deal found 8/19![Turkish Airlines logo]()
$835
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:30 pm -
Nonstop8h 25m
Tue 9/296:50 am -
1 stop11h 10m
Deal found 8/15![United Airlines logo]()
$926
This KLM deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/255:25 pm -
1 stop10h 25m
Sat 11/78:40 am -
1 stop11h 45m
Deal found 8/15![KLM logo]()
$951
This Mytrip deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:05 am -
2 stops21h 00m
Wed 10/76:10 pm -
3 stops32h 02m
Deal found 8/15![Multiple Airlines logo]()
$809
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:48 am -
2 stops16h 37m
Wed 10/1410:25 am -
2 stops18h 08m
Deal found 8/17![Delta logo]()
$897
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:38 am -
2 stops18h 07m
Wed 10/74:25 pm -
1 stop26h 15m
Deal found 8/19![TAP AIR PORTUGAL logo]()
$990
This Virgin Atlantic deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/69:55 am -
1 stop15h 10m
Wed 2/1012:40 pm -
1 stop15h 30m
Deal found 8/16![Virgin Atlantic logo]()
$908
This Turkish Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1111:45 am -
1 stop22h 35m
Tue 2/165:20 pm -
1 stop22h 40m
Deal found 8/19![Turkish Airlines logo]()
$835
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/143:45 pm -
Nonstop8h 10m
Tue 12/297:40 am -
Nonstop9h 05m
Deal found 8/15![United Airlines logo]()
$942
This KLM deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/61:00 pm -
1 stop12h 45m
Sat 2/208:55 am -
1 stop13h 30m
Deal found 8/18![KLM logo]()
$1,006
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:05 pm -
2 stops20h 20m
Wed 10/1412:05 pm -
2 stops30h 35m
Deal found 8/19![TAP AIR PORTUGAL logo]()
$1,008
This Icelandair deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:15 pm -
2 stops15h 40m
Wed 11/1811:55 am -
1 stop11h 25m
Deal found 8/15![Icelandair logo]()
$1,010
This Turkish Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/611:45 am -
1 stop16h 10m
Wed 2/1010:55 am -
1 stop37h 25m
Deal found 8/17![Turkish Airlines logo]()
$835
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:30 pm -
1 stop13h 25m
Thu 11/126:00 am -
1 stop17h 20m
Deal found 8/15![Multiple Airlines logo]()
$846
Last-minute flights from Chicago to LondonDiscover last-minute flight deals from Chicago to London. Data last updated August 20, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to London. Data last updated August 20, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:25 pm -
2 stops22h 45m
Tue 9/227:10 am -
2 stops17h 05m
Deal found 8/15![Multiple Airlines logo]()
$682
This Gotogate deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:05 pm -
1 stop12h 40m
Wed 10/77:50 pm -
1 stop22h 50m
Deal found 8/17![TAP AIR PORTUGAL logo]()
$705
This Ticket deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:25 pm -
1 stop10h 30m
Tue 9/291:05 pm -
1 stop11h 10m
Deal found 8/20![Icelandair logo]()
$679
This lol.travel deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:00 pm -
1 stop18h 50m
Tue 9/296:45 pm -
1 stop27h 15m
Deal found 8/20![TAP AIR PORTUGAL logo]()
$684
This Gotogate deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:00 pm -
1 stop18h 50m
Wed 9/306:45 pm -
1 stop23h 55m
Deal found 8/16![TAP AIR PORTUGAL logo]()
$686
This Mytrip deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:25 pm -
2 stops17h 25m
Tue 9/2912:45 pm -
2 stops35h 30m
Deal found 8/18![Multiple Airlines logo]()
$688
This Gotogate deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:25 pm -
1 stop13h 15m
Tue 9/293:40 pm -
1 stop32h 35m
Deal found 8/19![Icelandair logo]()
$701
This Scandinavian Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:15 pm -
2 stops17h 15m
Sun 9/275:00 pm -
1 stop29h 10m
Deal found 8/18![Scandinavian Airlines logo]()
$674
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:15 am -
1 stop16h 45m
Wed 11/1810:10 am -
1 stop19h 40m
Deal found 8/16![Multiple Airlines logo]()
$683
This Mytrip deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:45 pm -
2 stops18h 00m
Wed 11/189:45 pm -
2 stops25h 35m
Deal found 8/17![Multiple Airlines logo]()
$702
This Mytrip deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:25 pm -
2 stops17h 00m
Tue 10/65:50 pm -
2 stops33h 35m
Deal found 8/15![Multiple Airlines logo]()
$680
This Cheapflightsfares deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:25 pm -
1 stop13h 15m
Wed 10/73:40 pm -
1 stop11h 45m
Deal found 8/19![Icelandair logo]()
$706
One-way flights from Chicago to LondonSearch for one-way flight options from Chicago to London. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
Search for one-way flight options from Chicago to London. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:25 pm -
1 stop31h 30m
Deal found 8/15![Icelandair logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:45 am -
2 stops29h 05m
Deal found 8/16![Multiple Airlines logo]()
$308
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:25 pm -
2 stops17h 55m
Deal found 8/15![Multiple Airlines logo]()
$309
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:25 pm -
1 stop15h 55m
Deal found 8/18![Icelandair logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:15 am -
2 stops21h 45m
Deal found 8/15![Multiple Airlines logo]()
$309
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:25 pm -
1 stop13h 15m
Deal found 8/18![Icelandair logo]()
$309
This Justfly.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:25 pm -
1 stop10h 30m
Deal found 8/18![Icelandair logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:46 pm -
2 stops33h 14m
Deal found 8/19![Multiple Airlines logo]()
$310
This FlightHub deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:25 pm -
1 stop13h 15m
Deal found 8/19![Icelandair logo]()
$310
This Mytrip deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:05 am -
3 stops20h 10m
Deal found 8/16![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:25 pm -
3 stops30h 10m
Deal found 8/18![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:40 pm -
2 stops33h 20m
Deal found 8/17![Multiple Airlines logo]()
$311
Find flight deals from Chicago to London
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to London (LON). 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 August 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $661 (Scandinavian Airlines) |
One-way from | $308 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $875 |
Good round-trip deal | $990 or less |
Good one-way deal | $442 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to London 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 7,457,451 searches. Data last updated August 20, 2026.
Use the filters below to find and compare flights from Chicago to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Wed 11/4
6:30 pm-5:20 pm
2 stops16h 50m
London Luton
Wed 11/11
7:45 am-5:20 pm
2 stops15h 35m
$721
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Tue 11/3
1:55 pm-8:50 pm
2 stops24h 55m
London Luton
Sat 11/7
9:30 pm-3:30 pm
2 stops24h 00m
$729
ChicagoLondon
ORD Chicago O'Hare Intl - LHR London Heathrow
ORDLHR
Chicago O'Hare Intl
Sat 2/6
6:30 pm-10:50 am
1 stop10h 20m
London Heathrow
Fri 2/26
12:15 pm-5:20 pm
1 stop11h 05m
$737
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Fri 10/2
7:15 pm-7:05 pm
2 stops17h 50m
London Luton
Fri 10/9
2:50 pm-4:10 pm
2 stops31h 20m
$786
ChicagoLondon
ORD Chicago O'Hare Intl - LGW London Gatwick
ORDLGW
Chicago O'Hare Intl
Wed 10/28
8:00 pm-10:00 am
2 stops33h 00m
London Gatwick
Tue 11/3
4:35 pm-3:30 pm
1 stop28h 55m
$788
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Sat 10/3
11:05 am-2:05 pm
2 stops21h 00m
London Luton
Wed 10/7
6:10 pm-8:12 pm
3 stops32h 02m
$809
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Sun 9/20
8:10 pm-4:40 pm
1 stop38h 30m
London Stansted
Wed 9/30
5:45 pm-9:40 am
1 stop21h 55m
$834
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Wed 9/30
8:10 pm-4:40 pm
1 stop38h 30m
London Stansted
Tue 10/6
5:35 pm-9:40 am
1 stop22h 05m
$835
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Wed 2/3
8:15 pm-9:55 am
1 stop31h 40m
London Stansted
Wed 2/10
10:55 am-6:20 pm
1 stop37h 25m
$835
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Thu 2/11
11:45 am-4:20 pm
1 stop22h 35m
London Stansted
Tue 2/16
5:20 pm-10:00 am
1 stop22h 40m
$835
Showing 1-10 of 60 resultsSorted by cheapest first
Compare providers for flights from Chicago to London
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to London in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-London flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Chicago to London
Have a flexible travel schedule? Discover the best time to fly to London from Chicago with our price prediction graph.
CHI-LON
ORD-LHR
ORD-LGW
ORD-STN
ORD-LTN
Estimated round-trip 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 Chicago to London
CHI-LON
ORD-LHR
ORD-LGW
ORD-STN
ORD-LTN
What is the cheapest month to book a flight from Chicago to London?
Currently, January is the cheapest month in which you can book a flight from Chicago to London (average of $661). Flying from Chicago to London in June is currently the most expensive (average of $1,384). 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 CHI to LON?
Find hourly flight availability from Chicago to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago to London as you normally would.
Weekly flight availability from Chicago to London
Explore weekly flight availability from Chicago to London. 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 August 20, 2026.
The most flights from CHI to LON are scheduled on a Monday (54 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (47 on average).
How much does it cost to fly round-trip from Chicago to London?
Airfare is below average for this route at the moment.
Chicago to London flights typically cost between $678 and $962 in October.The cheapest round-trip price found within the last 5 days was $661 on Scandinavian Airlines (Oct 11-Oct 14).
What’s the top layover airport for flights from Chicago to London?
Share of 1-stop round-trip flights from Chicago to London chosen by Cheapflights users in the past 12 months, using the same layover each way.
Lisbon (LIS) – chosen by Cheapflights users on 35% of 1-stop itineraries from Chicago to London on Cheapflights.
What’s the cheapest layover airport for flights from Chicago to London?
Average round-trip fare for 1-stop flights from Chicago to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $479.
What’s the fastest layover option from Chicago to London?
Shortest average travel time for 1-stop one-way flights from Chicago to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 20m.
Which airport typically offers the quickest layover for flights from Chicago to London?
Average layover duration for 1-stop one-way flights from Chicago to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 0h 55m.
How often are flights from Chicago to London delayed?
About 25% of weekly flights between Chicago and London have experienced delays in the past year, with the average delay time being 170 minutes.
What is the most punctual flight time for Chicago to London flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to London flights?
Over the last year, British Airways have had the lowest number of delays on this route, with just 24% of flights being delayed.
How far ahead should I book a flight from Chicago to London?
The best time to book flights from Chicago to London is 9 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
The best insider tips for Chicago to London flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to London trip
Our travel experts
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. 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 London. Reviews last updated August 20, 2026.
See what other customers who have flown with United Airlines,American Airlines, andIberia from Chicago to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from Chicago to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsIlford
Dorking
Winchester
Gatwick
Hounslow
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Dartford
Croydon
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Harlow
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Top 10 airlines flying from Chicago to London
Discover the top 10 airlines that operate flights from Chicago to London. 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 7,457,451 searches. Data last updated August 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$362 | Average$781 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$428 | Average$713 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$430 | Average$560 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$458 | Average$786 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$476 | Average$633 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$520 | Average$845 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$522 | Average$809 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$563 | Average$925 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$574 | Average$851 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$581 | Average$911 | FlexibilityNo cancel fee | On-timeN/A |