$327+ Cheap flights from Washington 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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LON
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Cheapest flights from Washington to LondonExplore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/177:45 am -
3 stops24h 35m
Tue 11/249:15 am -
3 stops35h 45m
Deal found 10/29![Multiple Airlines logo]()
$737
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Tue 11/172:35 pm -
2 stops17h 15m
Tue 11/247:15 am -
2 stops17h 45m
Deal found 10/28![Multiple Airlines logo]()
$740
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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.
Mon 11/92:35 pm -
1 stop20h 55m
Fri 11/2012:15 pm -
1 stop12h 45m
Deal found 10/30![Icelandair logo]()
$740
This Mytrip deal was found by Cheapflights users on 10/28. 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 11/141:50 pm -
3 stops34h 45m
Sat 11/217:00 am -
3 stops22h 57m
Deal found 10/28![Multiple Airlines logo]()
$741
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/252:35 pm -
1 stop20h 55m
Mon 11/308:35 pm -
1 stop28h 25m
Deal found 10/29![Icelandair logo]()
$741
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/82:35 pm -
1 stop12h 20m
Wed 11/259:50 am -
2 stops37h 32m
Deal found 10/29![Multiple Airlines logo]()
$742
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/122:35 pm -
1 stop12h 15m
Sat 11/2112:15 pm -
1 stop12h 45m
Deal found 10/29![Icelandair logo]()
$743
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/57:45 am -
3 stops29h 35m
Thu 11/126:00 pm -
3 stops27h 00m
Deal found 10/26![Multiple Airlines logo]()
$744
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/167:45 am -
2 stops23h 15m
Tue 11/248:15 pm -
1 stop23h 45m
Deal found 10/29![Multiple Airlines logo]()
$745
This Justfly.com deal was found by Cheapflights users on 10/28. 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 12/112:35 pm -
1 stop20h 55m
Sun 1/108:35 pm -
1 stop28h 25m
Deal found 10/28![Icelandair logo]()
$745
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 11/222:35 pm -
1 stop20h 55m
Fri 12/412:15 pm -
1 stop12h 45m
Deal found 10/30![Icelandair logo]()
$746
This Mytrip deal was found by Cheapflights users on 10/27. 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 12/92:35 pm -
3 stops21h 35m
Wed 12/237:30 pm -
3 stops29h 30m
Deal found 10/27![Multiple Airlines logo]()
$747
Best flights from Washington to LondonDiscover carefully curated flight deals from Washington to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Washington to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Virgin Atlantic deal was found by Cheapflights users on 10/25. 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 2/174:55 pm -
Nonstop9h 45m
Wed 2/246:30 am -
1 stop13h 17m
Deal found 10/25![Virgin Atlantic logo]()
$818
This Scandinavian Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 11/1610:39 am -
2 stops21h 21m
Sun 11/226:40 am -
2 stops23h 24m
Deal found 10/28![Scandinavian Airlines logo]()
$842
This Delta deal was found by Cheapflights users on 10/25. 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 4/1412:00 pm -
2 stops20h 00m
Tue 4/209:55 am -
1 stop15h 32m
Deal found 10/25![Delta logo]()
$843
This KLM deal was found by Cheapflights users on 10/30. 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 4/19:50 pm -
Nonstop9h 45m
Fri 4/910:50 am -
Nonstop10h 20m
Deal found 10/30![KLM logo]()
$911
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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.
Thu 2/46:40 pm -
Nonstop9h 40m
Sun 2/142:45 pm -
Nonstop10h 05m
Deal found 10/25![Alaska Airlines logo]()
$913
This Turkish Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 2/137:05 pm -
1 stop30h 50m
Fri 2/195:20 pm -
1 stop31h 50m
Deal found 10/28![Turkish Airlines logo]()
$918
This United Airlines deal was found by Cheapflights users on 10/27. 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 3/412:45 pm -
1 stop12h 55m
Fri 3/193:00 pm -
2 stops37h 02m
Deal found 10/27![United Airlines logo]()
$954
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:36 pm -
1 stop14h 44m
Mon 12/1412:35 pm -
2 stops19h 06m
Deal found 10/26![Multiple Airlines logo]()
$1,033
This Condor deal was found by Cheapflights users on 10/27. 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.
Sun 11/293:00 pm -
1 stop20h 25m
Sun 12/64:10 pm -
1 stop31h 45m
Deal found 10/27![Condor logo]()
$1,156
This SWISS deal was found by Cheapflights users on 10/26. 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.
Fri 2/121:13 pm -
2 stops20h 37m
Fri 2/199:00 am -
2 stops19h 55m
Deal found 10/26![SWISS logo]()
$1,547
This Scandinavian Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 12/110:39 am -
2 stops21h 21m
Wed 12/96:40 am -
2 stops21h 44m
Deal found 10/26![Scandinavian Airlines logo]()
$843
This Delta deal was found by Cheapflights users on 10/28. 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 4/253:00 pm -
Nonstop9h 50m
Wed 5/129:55 am -
1 stop14h 25m
Deal found 10/28![Delta logo]()
$852
This Virgin Atlantic deal was found by Cheapflights users on 10/26. 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.
Sun 2/287:05 am -
2 stops20h 35m
Mon 3/158:25 pm -
2 stops27h 39m
Deal found 10/26![Virgin Atlantic logo]()
$901
This KLM deal was found by Cheapflights users on 10/26. 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 12/104:50 pm -
Nonstop9h 50m
Mon 12/1412:20 pm -
Nonstop10h 30m
Deal found 10/26![KLM logo]()
$915
This Turkish Airlines deal was found by Cheapflights users on 10/26. 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 4/147:15 pm -
1 stop37h 30m
Tue 4/275:50 pm -
1 stop31h 30m
Deal found 10/26![Turkish Airlines logo]()
$970
This Delta deal was found by Cheapflights users on 10/25. 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 4/77:20 am -
1 stop15h 25m
Sat 4/175:45 pm -
Nonstop10h 18m
Deal found 10/25![Delta logo]()
$887
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 11/265:00 am -
1 stop23h 20m
Thu 12/32:45 pm -
1 stop17h 06m
Deal found 10/26![Alaska Airlines logo]()
$985
This Scandinavian Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 11/3012:31 pm -
2 stops21h 09m
Wed 12/166:40 am -
2 stops25h 15m
Deal found 10/27![Scandinavian Airlines logo]()
$903
This Virgin Atlantic deal was found by Cheapflights users on 10/25. 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 11/244:05 pm -
1 stop15h 40m
Tue 12/14:45 pm -
1 stop30h 28m
Deal found 10/25![Virgin Atlantic logo]()
$905
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Tue 11/177:00 am -
1 stop16h 25m
Tue 11/249:00 am -
2 stops19h 57m
Deal found 10/30![United Airlines logo]()
$996
This KLM deal was found by Cheapflights users on 10/26. 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 2/134:55 pm -
Nonstop9h 45m
Sat 2/2012:20 pm -
Nonstop10h 25m
Deal found 10/26![KLM logo]()
$928
This Turkish Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 11/147:05 pm -
1 stop37h 25m
Sat 11/216:30 am -
1 stop18h 40m
Deal found 10/29![Turkish Airlines logo]()
$985
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/187:00 am -
1 stop16h 25m
Wed 11/256:35 am -
2 stops22h 22m
Deal found 10/27![United Airlines logo]()
$999
This Delta deal was found by Cheapflights users on 10/30. 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 3/145:20 am -
1 stop22h 20m
Fri 4/28:40 am -
2 stops22h 58m
Deal found 10/30![Delta logo]()
$910
This Scandinavian Airlines deal was found by Cheapflights users on 10/25. 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 2/1411:45 am -
2 stops21h 55m
Sat 2/206:40 am -
2 stops22h 10m
Deal found 10/25![Scandinavian Airlines logo]()
$915
This Turkish Airlines deal was found by Cheapflights users on 10/26. 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.
Sat 2/137:05 pm -
1 stop30h 05m
Sat 2/2010:05 am -
1 stop39h 05m
Deal found 10/26![Turkish Airlines logo]()
$986
This Delta deal was found by Cheapflights users on 10/29. 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 3/285:20 am -
1 stop19h 30m
Tue 4/68:40 am -
2 stops19h 12m
Deal found 10/29![Delta logo]()
$911
This Expedia deal was found by Cheapflights users on 10/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/82:04 pm -
1 stop14h 06m
Tue 12/154:55 pm -
2 stops27h 01m
Deal found 10/26![Multiple Airlines logo]()
$1,238
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/144:10 pm -
2 stops31h 30m
Sat 11/214:40 pm -
2 stops36h 17m
Deal found 10/29![United Airlines logo]()
$1,062
This KLM deal was found by Cheapflights users on 10/29. 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 11/196:25 am -
1 stop16h 40m
Wed 11/256:30 am -
2 stops18h 31m
Deal found 10/29![KLM logo]()
$1,067
Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to London. Data last updated October 30, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/57:45 am -
3 stops29h 35m
Thu 11/126:00 pm -
3 stops27h 00m
Deal found 10/26![Multiple Airlines logo]()
$744
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/82:35 pm -
1 stop12h 20m
Wed 11/259:50 am -
2 stops37h 32m
Deal found 10/29![Multiple Airlines logo]()
$742
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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.
Mon 11/92:35 pm -
1 stop20h 55m
Fri 11/2012:15 pm -
1 stop12h 45m
Deal found 10/30![Icelandair logo]()
$740
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/122:35 pm -
1 stop12h 15m
Sat 11/2112:15 pm -
1 stop12h 45m
Deal found 10/29![Icelandair logo]()
$743
This Mytrip deal was found by Cheapflights users on 10/28. 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 11/141:50 pm -
3 stops34h 45m
Sat 11/217:00 am -
3 stops22h 57m
Deal found 10/28![Multiple Airlines logo]()
$741
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/167:45 am -
2 stops23h 15m
Tue 11/248:15 pm -
1 stop23h 45m
Deal found 10/29![Multiple Airlines logo]()
$745
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/177:45 am -
3 stops24h 35m
Tue 11/249:15 am -
3 stops35h 45m
Deal found 10/29![Multiple Airlines logo]()
$737
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Tue 11/172:35 pm -
2 stops17h 15m
Tue 11/247:15 am -
2 stops17h 45m
Deal found 10/28![Multiple Airlines logo]()
$740
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 11/222:35 pm -
1 stop20h 55m
Fri 12/412:15 pm -
1 stop12h 45m
Deal found 10/30![Icelandair logo]()
$746
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 11/222:35 pm -
1 stop20h 55m
Thu 12/312:15 pm -
1 stop12h 45m
Deal found 10/30![Icelandair logo]()
$747
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/252:35 pm -
1 stop20h 55m
Mon 11/308:35 pm -
1 stop28h 25m
Deal found 10/29![Icelandair logo]()
$741
This Mytrip deal was found by Cheapflights users on 10/30. 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 11/252:35 pm -
3 stops34h 00m
Tue 12/17:00 am -
2 stops18h 00m
Deal found 10/30![Multiple Airlines logo]()
$748
One-way flights from Washington to LondonSearch for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/232:35 pm -
2 stops18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$327
This oojo deal was found by Cheapflights users on 10/26. 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.
Fri 2/262:35 pm -
1 stop20h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Icelandair logo]()
$329
This Justfly.com deal was found by Cheapflights users on 10/26. 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 2/267:05 pm -
2 stops41h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Air Canada logo]()
$330
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/102:35 pm -
2 stops18h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$336
This Justfly.com deal was found by Cheapflights users on 10/26. 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 3/171:16 pm -
2 stops35h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![SWISS logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/102:35 pm -
3 stops58h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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 2/266:40 pm -
Nonstop9h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Alaska Airlines logo]()
$348
This FlightHub deal was found by Cheapflights users on 10/26. 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.
Tue 12/12:35 pm -
1 stop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Icelandair logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 3/173:35 pm -
2 stops20h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$359
This Trip.com deal was found by Cheapflights users on 10/26. 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.
Wed 3/174:35 pm -
1 stop33h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Virgin Atlantic logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/228:34 pm -
3 stops56h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/282:35 pm -
2 stops16h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$365
Find flight deals from Washington to London
Keep the following information in mind while searching for Washington to London flight deals. Data was last updated October 30, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $737 (Mytrip) |
One-way from | $327 (Mytrip) |
Popular in | June |
Cheapest in | January |
Average price | $895 |
Good round-trip deal | $896 or less |
Good one-way deal | $505 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington 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 October 30, 2026.
Use the filters below to find and compare flights from Washington to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PascoLondon
PSC Pasco Tri Cities - LHR London Heathrow
PSCLHR
Pasco Tri Cities
Fri 4/2
12:45 pm-12:25 pm
1 stop15h 40m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$384
PullmanLondon
PUW Pullman Moscow Regional - LHR London Heathrow
PUWLHR
Pullman Moscow Regional
Mon 3/8
5:00 am-8:15 am
2 stops19h 15m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$384
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Fri 2/26
3:30 pm-3:45 pm
1 stop16h 15m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$384
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Sat 2/27
4:05 pm-3:45 pm
1 stop15h 40m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$384
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Fri 4/2
6:35 pm-4:00 pm
1 stop13h 25m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$399
SeattleLondon
SEA Seattle/Tacoma Intl - STN London Stansted
SEASTN
Seattle/Tacoma Intl
Mon 4/12
7:00 pm-11:00 pm
3 stops20h 00m
London Stansted
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$417
SpokaneLondon
GEG Spokane - LHR London Heathrow
GEGLHR
Spokane
Sat 11/28
7:36 pm-10:50 am
2 stops31h 14m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$444
SeattleLondon
SEA Seattle/Tacoma Intl - STN London Stansted
SEASTN
Seattle/Tacoma Intl
Fri 1/1
2:35 pm-8:15 am
3 stops33h 40m
London Stansted
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$456
SeattleLondon
SEA Seattle/Tacoma Intl - STN London Stansted
SEASTN
Seattle/Tacoma Intl
Sat 12/26
9:28 pm-3:55 pm
3 stops34h 27m
London Stansted
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$493
SeattleLondon
SEA Seattle/Tacoma Intl - STN London Stansted
SEASTN
Seattle/Tacoma Intl
Wed 3/17
3:35 pm-6:30 pm
3 stops19h 55m
London Stansted
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$501
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to London
Have a flexible travel schedule? Discover the best time to fly to London from Washington with our price prediction graph.
SEA-LGW
SEA-STN
SEA-LHR
PSC-LHR
EAT-LHR
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 Washington to London
USWA-LON
SEA-LGW
SEA-STN
SEA-LHR
PSC-LHR
What is the cheapest month to book a flight from State of Washington to London?
Currently, January is the cheapest month in which you can book a flight from State of Washington to London (average of $707). Flying from State of Washington to London in June is currently the most expensive (average of $1,224). 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 WA to LON?
Find hourly flight availability from Washington 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 October 30, 2026.
When flying from State of Washington to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from State of Washington to London?
Airfare is typical for this route at the moment.
State of Washington to London flights typically cost between $675 and $1,039 in November.The cheapest round-trip price found within the last 5 days was $737 on Multiple Airlines (Nov 17-Nov 24).
How far ahead should I book a flight from State of Washington to London?
The best time to book flights from State of Washington to London is 55 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.
Related info for your journey
Find useful and relevant information for your journey from Washington 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
Gatwick
Hounslow
Wembley
Harrow
Southend-on-Sea
Basingstoke
Watford
Dartford
Winchester
Croydon
Kingston upon Thames
Chipping Norton
Slough
Eastbourne
Stansted
Sutton
Luton
Bedford
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Alternative routes for Washington to London
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Complete your trip
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Other flights to London
Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Washington and London flights
Browse other Washington and London flight options. Last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Washington to London flights
Consider these flights traveling from Washington to London.
Top 10 airlines flying from Washington to London
Discover the top 10 airlines that operate flights from Washington 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 October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$379 | Average$1,043 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$492 | Average$734 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$542 | Average$706 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$571 | Average$1,024 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$592 | Average$931 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$599 | Average$824 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$608 | Average$997 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$638 | Average$929 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$644 | Average$858 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$660 | Average$982 | FlexibilityNo cancel fee | On-time75% |