$511+ Cheap flights from London (LON) to Washington
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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SEA
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Cheapest flights from London to WashingtonExplore the most affordable flight options available from London to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
Explore the most affordable flight options available from London to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:40 pm -
1 stop13h 00m
Mon 10/263:35 pm -
1 stop12h 20m
Deal found 9/14![Icelandair logo]()
$581
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.
Wed 9/305:35 pm -
1 stop25h 40m
Mon 10/129:50 pm -
Nonstop9h 45m
Deal found 9/14![Delta logo]()
$581
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:20 am -
1 stop15h 15m
Sun 10/181:45 pm -
1 stop11h 45m
Deal found 9/14![Virgin Atlantic logo]()
$582
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.
Thu 9/2410:25 am -
1 stop15h 23m
Sat 10/31:30 pm -
1 stop11h 50m
Deal found 9/14![Delta logo]()
$584
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:05 pm -
2 stops16h 42m
Thu 10/2210:50 am -
1 stop18h 30m
Deal found 9/12![Air Canada logo]()
$584
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.
Mon 9/2812:25 pm -
1 stop16h 11m
Sun 10/119:50 pm -
Nonstop9h 45m
Deal found 9/14![Delta logo]()
$585
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1210:45 am -
1 stop16h 08m
Wed 1/134:55 pm -
Nonstop9h 45m
Deal found 9/12![Delta logo]()
$586
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:40 pm -
1 stop13h 00m
Sun 11/82:35 pm -
1 stop12h 20m
Deal found 9/14![Icelandair logo]()
$587
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.
Sat 10/311:25 am -
1 stop17h 50m
Thu 10/89:05 am -
1 stop14h 20m
Deal found 9/14![United Airlines logo]()
$587
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:00 am -
1 stop14h 35m
Sun 10/111:45 pm -
1 stop11h 45m
Deal found 9/14![Virgin Atlantic logo]()
$588
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:05 pm -
2 stops16h 42m
Wed 10/75:50 am -
2 stops16h 40m
Deal found 9/11![Air Canada logo]()
$588
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.
Fri 9/2510:25 am -
2 stops21h 30m
Tue 9/291:30 pm -
1 stop11h 55m
Deal found 9/14![Virgin Atlantic logo]()
$590
Best flights from London to WashingtonDiscover carefully curated flight deals from London to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
Discover carefully curated flight deals from London to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
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.
Fri 10/28:25 am -
1 stop16h 10m
Mon 10/55:45 pm -
1 stop14h 55m
Deal found 9/14![Delta logo]()
$602
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 10/18:25 am -
2 stops18h 39m
Sun 10/111:45 pm -
1 stop20h 45m
Deal found 9/14![Virgin Atlantic logo]()
$603
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:00 pm -
Nonstop10h 00m
Sat 12/196:55 pm -
Nonstop9h 25m
Deal found 9/14![Alaska Airlines logo]()
$604
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:15 am -
2 stops21h 03m
Wed 11/2510:50 am -
2 stops42h 00m
Deal found 9/12![SWISS logo]()
$699
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2211:55 am -
1 stop13h 05m
Sun 1/102:35 pm -
1 stop12h 20m
Deal found 9/10![Icelandair logo]()
$716
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.
Sat 11/217:35 am -
2 stops17h 25m
Sun 11/292:35 pm -
2 stops16h 35m
Deal found 9/10![Multiple Airlines logo]()
$766
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:40 am -
2 stops22h 16m
Wed 12/911:01 am -
3 stops20h 59m
Deal found 9/12![Scandinavian Airlines logo]()
$826
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:00 am -
1 stop16h 47m
Wed 12/95:45 pm -
Nonstop9h 35m
Deal found 9/12![British Airways logo]()
$920
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/272:30 pm -
1 stop32h 11m
Sun 1/3110:47 am -
1 stop17h 13m
Deal found 9/13![United Airlines logo]()
$925
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.
Tue 10/205:35 pm -
2 stops37h 21m
Wed 11/1110:50 am -
2 stops27h 45m
Deal found 9/12![Turkish Airlines logo]()
$993
This Condor 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:20 am -
2 stops61h 51m
Sun 10/45:40 pm -
1 stop13h 00m
Deal found 9/11![Condor logo]()
$1,158
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.
Fri 10/210:00 am -
1 stop14h 35m
Mon 10/125:45 pm -
1 stop14h 55m
Deal found 9/14![Delta logo]()
$602
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:00 am -
1 stop14h 35m
Sat 10/31:45 pm -
1 stop15h 30m
Deal found 9/11![Delta logo]()
$603
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:00 am -
2 stops20h 01m
Tue 9/293:18 pm -
2 stops18h 07m
Deal found 9/12![SWISS logo]()
$699
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:05 pm -
2 stops27h 32m
Mon 11/26:00 am -
2 stops17h 15m
Deal found 9/11![Virgin Atlantic logo]()
$755
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:55 am -
1 stop13h 05m
Sat 12/52:35 pm -
1 stop12h 20m
Deal found 9/13![Icelandair logo]()
$763
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:25 am -
2 stops17h 07m
Tue 10/2010:42 am -
2 stops37h 43m
Deal found 9/14![SWISS logo]()
$726
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.
Mon 12/2110:00 am -
1 stop13h 13m
Sat 1/94:05 pm -
1 stop15h 40m
Deal found 9/10![Delta logo]()
$678
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 12/106:40 am -
2 stops24h 04m
Mon 1/117:00 am -
2 stops25h 00m
Deal found 9/14![Scandinavian Airlines logo]()
$827
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.
Thu 11/56:05 am -
1 stop18h 55m
Sun 11/82:35 pm -
1 stop16h 30m
Deal found 9/13![Multiple Airlines logo]()
$837
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:40 pm -
1 stop34h 15m
Fri 10/93:40 pm -
1 stop15h 00m
Deal found 9/14![Icelandair logo]()
$788
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:40 am -
2 stops23h 20m
Sun 12/1311:01 am -
3 stops20h 59m
Deal found 9/11![Scandinavian Airlines logo]()
$827
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.
Sun 10/257:05 am -
2 stops17h 55m
Sun 11/12:35 pm -
2 stops13h 45m
Deal found 9/10![Multiple Airlines logo]()
$860
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/101:10 pm -
1 stop16h 49m
Mon 12/145:45 pm -
Nonstop9h 35m
Deal found 9/11![British Airways logo]()
$962
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/611:55 am -
1 stop13h 05m
Thu 11/122:45 pm -
1 stop12h 10m
Deal found 9/9![Icelandair logo]()
$809
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 9/179:00 am -
1 stop15h 59m
Sat 9/267:25 pm -
2 stops17h 15m
Deal found 9/12![United Airlines logo]()
$997
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2810:55 am -
1 stop38h 15m
Sun 2/710:54 am -
2 stops45h 26m
Deal found 9/13![Turkish Airlines logo]()
$1,005
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.
Thu 10/297:05 pm -
2 stops35h 13m
Sun 11/810:50 am -
2 stops42h 00m
Deal found 9/10![SWISS logo]()
$834
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/66:40 am -
2 stops22h 47m
Thu 3/1110:00 am -
3 stops27h 20m
Deal found 9/12![Scandinavian Airlines logo]()
$871
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:25 am -
2 stops19h 35m
Wed 10/211:05 pm -
1 stop19h 35m
Deal found 9/11![Virgin Atlantic logo]()
$965
Last-minute flights from London to WashingtonDiscover last-minute flight deals from London to Washington. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from London to Washington. Data last updated September 14, 2026 and is based on user searches.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:15 am -
2 stops16h 17m
Wed 9/303:00 pm -
2 stops31h 35m
Deal found 9/14![Air Canada logo]()
$590
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.
Thu 9/2410:25 am -
1 stop15h 23m
Sat 10/31:30 pm -
1 stop11h 50m
Deal found 9/14![Delta logo]()
$584
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.
Fri 9/2510:25 am -
2 stops21h 30m
Tue 9/291:30 pm -
1 stop11h 55m
Deal found 9/14![Virgin Atlantic logo]()
$590
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:05 pm -
2 stops16h 42m
Thu 10/2210:50 am -
1 stop18h 30m
Deal found 9/12![Air Canada logo]()
$584
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.
Mon 9/2812:25 pm -
1 stop16h 11m
Sun 10/119:50 pm -
Nonstop9h 45m
Deal found 9/14![Delta logo]()
$585
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:05 pm -
2 stops16h 42m
Wed 10/75:50 am -
2 stops16h 40m
Deal found 9/11![Air Canada logo]()
$588
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.
Wed 9/305:35 pm -
1 stop25h 40m
Mon 10/129:50 pm -
Nonstop9h 45m
Deal found 9/14![Delta logo]()
$581
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:00 am -
1 stop14h 35m
Sun 10/111:45 pm -
1 stop11h 45m
Deal found 9/14![Virgin Atlantic logo]()
$588
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.
Sat 10/312:25 pm -
1 stop16h 11m
Thu 10/85:30 pm -
Nonstop9h 50m
Deal found 9/14![Delta logo]()
$587
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:40 pm -
1 stop13h 00m
Mon 10/263:35 pm -
1 stop12h 20m
Deal found 9/14![Icelandair logo]()
$581
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:20 am -
1 stop15h 15m
Sun 10/181:45 pm -
1 stop11h 45m
Deal found 9/14![Virgin Atlantic logo]()
$582
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:40 pm -
1 stop13h 00m
Sun 11/82:35 pm -
1 stop12h 20m
Deal found 9/14![Icelandair logo]()
$587
One-way flights from London to WashingtonSearch for one-way flight options from London to Washington. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
Search for one-way flight options from London to Washington. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
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 11/84:45 pm -
3 stops52h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$511
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.
Fri 11/132:55 pm -
2 stops28h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$511
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.
Wed 11/118:50 pm -
3 stops54h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$511
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 10/191:00 pm -
3 stops37h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$511
This Air France 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:00 am -
1 stop13h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Air France logo]()
$512
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:30 am -
2 stops20h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Delta logo]()
$512
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.
Tue 12/157:45 am -
3 stops39h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$512
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.
Wed 10/284:15 pm -
3 stops48h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$513
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:25 pm -
1 stop28h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Icelandair logo]()
$513
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:40 pm -
1 stop13h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Icelandair logo]()
$514
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.
Wed 10/75:15 pm -
3 stops52h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$514
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.
Sat 12/127:40 pm -
2 stops21h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Iberia logo]()
$514
Find flight deals from London to Washington
Keep the following information in mind while searching for London to Washington flight deals. Data was last updated September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $581 (Gotogate) |
One-way from | $511 (Kiwi.com) |
Popular in | August |
Cheapest in | February |
Average price | $739 |
Good round-trip deal | $602 or less |
Good one-way deal | $528 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from London to Washington 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 14, 2026.
Use the filters below to find and compare flights from London to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Sun 11/15
8:40 am-10:55 pm
2 stops22h 15m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$512
LondonSeattle
LGW London Gatwick - SEA Seattle/Tacoma Intl
LGWSEA
London Gatwick
Mon 12/28
11:55 am-5:00 pm
1 stop13h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$516
LondonSeattle
LGW London Gatwick - SEA Seattle/Tacoma Intl
LGWSEA
London Gatwick
Tue 12/15
10:00 am-8:42 pm
2 stops18h 42m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$517
LondonSeattle
LCY London City - SEA Seattle/Tacoma Intl
LCYSEA
London City
Tue 12/1
9:15 am-11:13 pm
2 stops21h 58m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$521
LondonSeattle
LGW London Gatwick - SEA Seattle/Tacoma Intl
LGWSEA
London Gatwick
Sun 11/8
10:00 am-11:56 pm
2 stops21h 56m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$524
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Sat 12/12
12:20 pm-2:50 pm
Nonstop10h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$524
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Sat 11/14
2:45 pm-4:50 pm
Nonstop10h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$524
LondonSeattle
LCY London City - SEA Seattle/Tacoma Intl
LCYSEA
London City
Sun 11/15
1:45 pm-3:25 pm
2 stops33h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$524
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Fri 11/6
12:20 pm-2:50 pm
Nonstop10h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$524
LondonSeattle
LCY London City - SEA Seattle/Tacoma Intl
LCYSEA
London City
Sun 11/8
1:45 pm-3:25 pm
2 stops33h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$524
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from London to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from London with our price prediction graph.
LCY-SEA
LHR-SEA
LGW-SEA
LTN-SEA
LHR-PDX
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 London to Washington
LON-USWA
LCY-SEA
LHR-SEA
LGW-SEA
LTN-SEA
What is the cheapest month to book a flight from London to State of Washington?
Currently, February is the cheapest month in which you can book a flight from London to State of Washington (average of $660). Flying from London to State of Washington in December is currently the most expensive (average of $870). 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 WA?
Find hourly flight availability from London to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 14, 2026.
When flying from London to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from London to State of Washington
Explore weekly flight availability from London to Washington. 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 14, 2026.
The most flights from LON to USWA are scheduled on a Tuesday (24 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (23 on average).
How much does it cost to fly round-trip from London to State of Washington?
Airfare is below average for this route at the moment.
London to State of Washington flights typically cost between $644 and $864 in October.The cheapest round-trip price found within the last 5 days was $581 on Icelandair (Oct 9-Oct 26).
How far ahead should I book a flight from London to State of Washington?
Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to State of Washington. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated September 14, 2026.
Read through reviews of airlines operating flights from London to Washington, such as Alaska Airlines,Delta, andVirgin Atlantic. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Related info for your journey
Find useful and relevant information for your journey from London to Washington. 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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Alternative routes for London to Washington
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Complete your trip
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Search flights from London to Washington by cabin class
Find flights from London to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
London and Washington flights
Browse other London and Washington flight options. Last updated on September 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
London to Washington flights
Consider these flights traveling from London to Washington.
Top 7 airlines flying from London to Washington
Discover the top 7 airlines that operate flights from London to Washington. 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 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$485 | Average$796 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$534 | Average$810 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$581 | Average$840 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$584 | Average$1,009 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$618 | Average$1,036 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$670 | Average$914 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$714 | Average$911 | FlexibilityNo cancel fee | On-time70% |