$308+ Cheap flights from O'Hare Intl (ORD) to London (LON)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LON
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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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
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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 O'Hare Intl to London are usually found in February or January, booked 12 days in advance, depart on a Tuesday or Wednesday and return on a Thursday
Cheap flight deals from O'Hare Intl to London
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Cheapest flights from O'Hare Intl to LondonExplore the most affordable flight options available from O'Hare Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from O'Hare Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This oojo deal was found by Cheapflights users on 9/13. 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.
Sun 12/136:30 pm -
1 stop19h 00m
Sun 12/208:35 pm -
1 stop26h 45m
Deal found 9/13![Icelandair logo]()
$654
This Booking.com deal was found by Cheapflights users on 9/11. 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.
Wed 9/309:00 pm -
1 stop10h 30m
Sat 11/78:50 am -
1 stop11h 20m
Deal found 9/11![Aer Lingus logo]()
$724
This Mytrip deal was found by Cheapflights users on 9/11. 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 11/23:55 pm -
2 stops23h 05m
Wed 11/184:35 pm -
3 stops31h 45m
Deal found 9/11![Multiple Airlines logo]()
$724
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:45 pm -
1 stop10h 25m
Tue 11/39:00 am -
2 stops16h 05m
Deal found 9/10![Air Canada logo]()
$725
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/213:45 pm -
1 stop15h 00m
Tue 9/299:40 am -
1 stop15h 35m
Deal found 9/14![Multiple Airlines logo]()
$725
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 9/307:05 pm -
1 stop16h 45m
Tue 10/69:25 am -
1 stop33h 10m
Deal found 9/12![SWISS logo]()
$725
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/213:45 pm -
1 stop10h 05m
Tue 9/2911:35 am -
1 stop13h 40m
Deal found 9/14![Multiple Airlines logo]()
$725
This Booking.com deal was found by Cheapflights users on 9/10. 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.
Mon 9/289:00 pm -
1 stop10h 55m
Sun 10/48:50 am -
1 stop11h 10m
Deal found 9/10![Aer Lingus logo]()
$726
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/153:45 pm -
1 stop14h 40m
Wed 10/216:15 am -
1 stop13h 45m
Deal found 9/10![Multiple Airlines logo]()
$726
This Mytrip deal was found by Cheapflights users on 9/10. 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 9/243:45 pm -
2 stops20h 35m
Mon 9/288:50 pm -
2 stops21h 45m
Deal found 9/10![Multiple Airlines logo]()
$726
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Wed 9/3011:05 am -
1 stop13h 25m
Mon 10/56:40 pm -
1 stop23h 55m
Deal found 9/11![Multiple Airlines logo]()
$727
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/2610:15 am -
2 stops22h 30m
Mon 11/24:20 pm -
2 stops32h 05m
Deal found 9/11![Multiple Airlines logo]()
$727
Best flights from O'Hare Intl to LondonDiscover carefully curated flight deals from O'Hare Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from O'Hare Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 10/710:30 am -
1 stop13h 50m
Fri 10/1611:15 am -
1 stop13h 56m
Deal found 9/10![Delta logo]()
$746
This Finnair deal was found by Cheapflights users on 9/14. 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.
Fri 10/96:05 pm -
Nonstop8h 00m
Thu 10/157:30 am -
1 stop16h 20m
Deal found 9/14![Finnair logo]()
$752
This Mytrip deal was found by Cheapflights users on 9/10. 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 11/26:30 pm -
2 stops20h 30m
Fri 11/67:00 am -
2 stops16h 20m
Deal found 9/10![Multiple Airlines logo]()
$768
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 9/185:00 am -
1 stop10h 25m
Thu 9/246:50 am -
1 stop11h 10m
Deal found 9/11![United Airlines logo]()
$776
This Virgin Atlantic deal was found by Cheapflights users on 9/12. 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 2/176:10 pm -
2 stops16h 25m
Wed 2/248:40 am -
1 stop11h 45m
Deal found 9/12![Virgin Atlantic logo]()
$790
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 11/267:15 pm -
2 stops55h 40m
Sun 11/296:40 pm -
1 stop28h 05m
Deal found 9/14![Scandinavian Airlines logo]()
$807
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/11. 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.
Sun 12/68:10 pm -
2 stops18h 25m
Sat 12/124:35 pm -
1 stop28h 55m
Deal found 9/11![TAP AIR PORTUGAL logo]()
$815
This KLM deal was found by Cheapflights users on 9/10. 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.
Wed 10/214:50 pm -
1 stop10h 40m
Mon 10/268:40 am -
1 stop11h 45m
Deal found 9/10![KLM logo]()
$826
This Turkish Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/128:10 pm -
1 stop38h 40m
Thu 10/295:20 pm -
1 stop22h 40m
Deal found 9/11![Turkish Airlines logo]()
$835
This SWISS deal was found by Cheapflights users on 9/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:10 pm -
1 stop14h 40m
Fri 11/139:15 am -
2 stops15h 00m
Deal found 9/10![SWISS logo]()
$1,140
This Mytrip deal was found by Cheapflights users on 9/14. 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 10/279:05 pm -
2 stops17h 35m
Wed 11/47:50 pm -
2 stops24h 20m
Deal found 9/14![Multiple Airlines logo]()
$777
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 11/139:50 pm -
Nonstop8h 10m
Tue 11/1710:25 am -
Nonstop9h 20m
Deal found 9/14![United Airlines logo]()
$781
This Virgin Atlantic deal was found by Cheapflights users on 9/10. 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.
Tue 11/106:25 pm -
1 stop15h 20m
Sat 11/2110:00 am -
1 stop12h 15m
Deal found 9/10![Virgin Atlantic logo]()
$794
This Turkish Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 11/178:15 pm -
1 stop38h 05m
Tue 12/15:20 pm -
1 stop31h 00m
Deal found 9/14![Turkish Airlines logo]()
$835
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/234:25 pm -
Nonstop8h 20m
Sun 10/48:00 am -
Nonstop9h 10m
Deal found 9/14![United Airlines logo]()
$781
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/267:30 pm -
2 stops16h 35m
Mon 11/28:20 am -
2 stops15h 00m
Deal found 9/11![Multiple Airlines logo]()
$785
This Virgin Atlantic deal was found by Cheapflights users on 9/14. 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.
Tue 11/176:00 pm -
2 stops15h 45m
Sun 11/2210:00 am -
1 stop12h 15m
Deal found 9/14![Virgin Atlantic logo]()
$798
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/14. 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.
Sun 9/276:00 pm -
1 stop33h 45m
Tue 9/299:15 pm -
2 stops24h 45m
Deal found 9/14![TAP AIR PORTUGAL logo]()
$934
This United Airlines deal was found by Cheapflights users on 9/12. 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 9/289:30 pm -
Nonstop8h 25m
Sun 10/48:00 am -
Nonstop9h 10m
Deal found 9/12![United Airlines logo]()
$781
This Turkish Airlines deal was found by Cheapflights users on 9/12. 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 2/178:15 pm -
1 stop31h 40m
Thu 2/255:20 pm -
1 stop31h 00m
Deal found 9/12![Turkish Airlines logo]()
$865
This Virgin Atlantic deal was found by Cheapflights users on 9/10. 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.
Tue 2/1611:30 am -
2 stops13h 45m
Tue 2/238:40 am -
2 stops15h 30m
Deal found 9/10![Virgin Atlantic logo]()
$799
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/255:40 pm -
1 stop14h 05m
Wed 12/99:45 pm -
2 stops25h 35m
Deal found 9/14![Multiple Airlines logo]()
$804
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Thu 12/107:05 am -
1 stop18h 05m
Wed 12/167:40 am -
Nonstop9h 05m
Deal found 9/12![United Airlines logo]()
$785
This Turkish Airlines deal was found by Cheapflights users on 9/11. 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 2/108:15 pm -
1 stop31h 40m
Mon 2/1510:55 am -
1 stop37h 25m
Deal found 9/11![Turkish Airlines logo]()
$875
This Virgin Atlantic deal was found by Cheapflights users on 9/14. 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.
Thu 2/111:35 pm -
2 stops20h 10m
Tue 2/1610:00 am -
2 stops17h 33m
Deal found 9/14![Virgin Atlantic logo]()
$816
This Mytrip deal was found by Cheapflights users on 9/13. 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 10/97:05 pm -
2 stops19h 20m
Tue 10/133:05 pm -
3 stops35h 07m
Deal found 9/13![Multiple Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/26:35 pm -
Nonstop8h 25m
Tue 2/24:20 pm -
1 stop13h 39m
Deal found 9/10![United Airlines logo]()
$792
This Delta deal was found by Cheapflights users on 9/14. 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 10/1311:19 am -
2 stops14h 36m
Tue 10/2010:00 am -
2 stops17h 31m
Deal found 9/14![Delta logo]()
$1,160
This Turkish Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/98:10 pm -
1 stop31h 45m
Thu 10/155:35 pm -
1 stop22h 05m
Deal found 9/11![Turkish Airlines logo]()
$875
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/13. 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 1/207:00 pm -
1 stop14h 05m
Mon 2/84:35 pm -
2 stops33h 33m
Deal found 9/13![TAP AIR PORTUGAL logo]()
$1,094
Last-minute flights from O'Hare Intl to LondonDiscover last-minute flight deals from O'Hare Intl to London. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to London. Data last updated September 15, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/213:45 pm -
1 stop15h 00m
Tue 9/299:40 am -
1 stop15h 35m
Deal found 9/14![Multiple Airlines logo]()
$725
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/213:45 pm -
1 stop10h 05m
Tue 9/2911:35 am -
1 stop13h 40m
Deal found 9/14![Multiple Airlines logo]()
$725
This Mytrip deal was found by Cheapflights users on 9/10. 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 9/243:45 pm -
2 stops20h 35m
Mon 9/288:50 pm -
2 stops21h 45m
Deal found 9/10![Multiple Airlines logo]()
$726
This Booking.com deal was found by Cheapflights users on 9/10. 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.
Mon 9/289:00 pm -
1 stop10h 55m
Sun 10/48:50 am -
1 stop11h 10m
Deal found 9/10![Aer Lingus logo]()
$726
This Booking.com deal was found by Cheapflights users on 9/11. 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.
Wed 9/309:00 pm -
1 stop10h 30m
Sat 11/78:50 am -
1 stop11h 20m
Deal found 9/11![Aer Lingus logo]()
$724
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 9/307:05 pm -
1 stop16h 45m
Tue 10/69:25 am -
1 stop33h 10m
Deal found 9/12![SWISS logo]()
$725
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Wed 9/3011:05 am -
1 stop13h 25m
Mon 10/56:40 pm -
1 stop23h 55m
Deal found 9/11![Multiple Airlines logo]()
$727
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
Wed 9/302:20 pm -
1 stop11h 35m
Sat 1/309:00 am -
1 stop13h 15m
Deal found 9/13![SWISS logo]()
$728
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/153:45 pm -
1 stop14h 40m
Wed 10/216:15 am -
1 stop13h 45m
Deal found 9/10![Multiple Airlines logo]()
$726
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/153:45 pm -
1 stop10h 35m
Wed 10/211:05 pm -
1 stop12h 10m
Deal found 9/10![Multiple Airlines logo]()
$727
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/2610:15 am -
2 stops22h 30m
Mon 11/24:20 pm -
2 stops32h 05m
Deal found 9/11![Multiple Airlines logo]()
$727
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:45 pm -
1 stop10h 25m
Tue 11/39:00 am -
2 stops16h 05m
Deal found 9/10![Air Canada logo]()
$725
One-way flights from O'Hare Intl to LondonSearch for one-way flight options from O'Hare Intl to London. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from O'Hare Intl to London. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 stops42h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 stops22h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$310
This Mytrip deal was found by Cheapflights users on 9/15. 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 10/132:15 pm -
2 stops18h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/267:30 pm -
3 stops39h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$314
This oojo deal was found by Cheapflights users on 9/12. 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 11/111:00 pm -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![JetBlue logo]()
$315
This oojo deal was found by Cheapflights users on 9/14. 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 9/287:00 am -
1 stop20h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![JetBlue logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 9/263:50 pm -
1 stop36h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$316
This Justfly.com deal was found by Cheapflights users on 9/11. 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.
Fri 1/16:30 pm -
1 stop10h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Icelandair logo]()
$317
This Justfly.com deal was found by Cheapflights users on 9/11. 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.
Wed 12/306:30 pm -
1 stop10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Icelandair logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 -
3 stops40h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/116:30 pm -
1 stop19h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Icelandair logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/96:30 pm -
1 stop10h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Icelandair logo]()
$319
Find flight deals from O'Hare Intl to London
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $616 (Gotogate) |
One-way from | $308 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $977 |
Good round-trip deal | $948 or less |
Good one-way deal | $463 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl 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 September 15, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Mon 10/26
7:30 pm-4:10 pm
3 stops39h 40m
London Stansted
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$314
ChicagoLondon
ORD Chicago O'Hare Intl - LGW London Gatwick
ORDLGW
Chicago O'Hare Intl
Tue 12/29
6:30 pm-10:55 am
1 stop10h 25m
London Gatwick
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$322
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Wed 10/7
7:25 pm-10:15 pm
2 stops20h 50m
London Luton
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$323
ChicagoLondon
ORD Chicago O'Hare Intl - LHR London Heathrow
ORDLHR
Chicago O'Hare Intl
Wed 10/28
1:00 pm-6:55 am
1 stop12h 55m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$328
ChicagoLondon
ORD Chicago O'Hare Intl - LHR London Heathrow
ORDLHR
Chicago O'Hare Intl
Sat 10/10
9:38 am-6:30 am
1 stop14h 52m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$329
ChicagoLondon
ORD Chicago O'Hare Intl - LGW London Gatwick
ORDLGW
Chicago O'Hare Intl
Mon 1/11
6:25 pm-3:45 pm
1 stop15h 20m
London Gatwick
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$330
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Thu 10/1
7:25 pm-9:00 pm
3 stops43h 35m
London Luton
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$330
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Thu 12/3
6:30 pm-3:40 pm
3 stops39h 10m
London Luton
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$331
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Sun 10/4
2:15 pm-2:30 pm
2 stops18h 15m
London Stansted
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$331
ChicagoLondon
ORD Chicago O'Hare Intl - LGW London Gatwick
ORDLGW
Chicago O'Hare Intl
Sun 1/31
11:30 am-3:45 pm
2 stops22h 15m
London Gatwick
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$334
Showing 1-10 of 60 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl 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 O'Hare Intl to London in September.
| 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 Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-London flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-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 O'Hare Intl Airport-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 O'Hare Intl to London
Have a flexible travel schedule? Discover the best time to fly to London from O'Hare Intl with our price prediction graph.
ORD-LON
ORD-LHR
ORD-LTN
ORD-LGW
ORD-STN
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 O'Hare Intl Airport to London
ORD-LON
ORD-LHR
ORD-LTN
ORD-LGW
ORD-STN
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to London?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of $637). Flying from Chicago O'Hare Intl Airport to London in June is currently the most expensive (average of $1,380). 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 ORD to LON?
Find hourly flight availability from O'Hare Intl 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 September 15, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to London as you normally would.
Weekly flight availability from Chicago O'Hare Intl Airport to London
Explore weekly flight availability from O'Hare Intl 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 September 15, 2026.
The most flights from ORD to LON are scheduled on a Monday (54 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (45 on average).
How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to London?
Airfare is below average for this route at the moment.
Chicago O'Hare Intl Airport to London flights typically cost between $764 and $1,147 in January.The cheapest round-trip price found within the last 5 days was $616 on Icelandair (Jan 10-Jan 17).
What’s the top layover airport for flights from Chicago O'Hare Intl Airport to London?
Share of 1-stop round-trip flights from Chicago O'Hare Intl Airport to London chosen by Cheapflights users in the past 12 months, using the same layover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 45% of 1-stop itineraries from Chicago O'Hare Intl Airport to London on Cheapflights.
What’s the cheapest layover airport for flights from Chicago O'Hare Intl Airport to London?
Average round-trip fare for 1-stop flights from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to London?
Shortest average travel time for 1-stop one-way flights from Chicago O'Hare Intl Airport 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 25m.
Which airport typically offers the quickest layover for flights from Chicago O'Hare Intl Airport to London?
Average layover duration for 1-stop one-way flights from Chicago O'Hare Intl Airport 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 1h 03m.
How often are flights from Chicago to London delayed?
About 24% of weekly flights between Chicago and London have experienced delays in the past year, with the average delay time being 164 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 at night 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 23% of flights being delayed.
How far ahead should I book a flight from Chicago O'Hare Intl Airport to London?
The best time to book flights from Chicago O'Hare Intl Airport to London is 74 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 O'Hare Intl Airport 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 O'Hare Intl Airport 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 September 15, 2026.
Peruse reviews from past customers who have flown with United Airlines,American Airlines, andIberia from Chicago O'Hare Intl Airport to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Top 10 airlines flying from O'Hare Intl to London
Discover the top 10 airlines that operate flights from O'Hare Intl 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 September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$286 | Average$1,411 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$362 | Average$890 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$430 | Average$578 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$432 | Average$726 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$458 | Average$823 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$476 | Average$685 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$522 | Average$809 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$565 | Average$926 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$581 | Average$917 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$595 | Average$953 | FlexibilityNo cancel fee | On-time70% |