$515+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SEA
Nov 29 — Dec 61
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 October 30, 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 October 30, 2026.
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:20 am -
1 stop15h 30m
Wed 11/253:25 pm -
1 stop14h 20m
Deal found 10/28![Air France logo]()
$542
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:35 am -
1 stop14h 25m
Sun 11/292:50 pm -
1 stop17h 00m
Deal found 10/29![Lufthansa logo]()
$543
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.
Mon 12/1412:20 pm -
Nonstop10h 30m
Sat 1/97:20 am -
1 stop15h 30m
Deal found 10/29![Multiple Airlines logo]()
$544
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:00 am -
1 stop13h 14m
Thu 12/34:05 pm -
1 stop15h 40m
Deal found 10/30![Multiple Airlines logo]()
$545
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1412:20 pm -
Nonstop10h 30m
Fri 1/84:55 pm -
Nonstop9h 45m
Deal found 10/28![KLM logo]()
$545
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:45 am -
1 stop35h 58m
Thu 1/74:55 pm -
Nonstop9h 45m
Deal found 10/28![Virgin Atlantic logo]()
$546
This Globehunters 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/172:30 pm -
1 stop32h 07m
Tue 11/243:15 pm -
1 stop12h 35m
Deal found 10/27![Air Canada logo]()
$547
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.
Thu 12/108:40 am -
1 stop35h 10m
Wed 1/66:00 am -
1 stop17h 05m
Deal found 10/28![Delta logo]()
$548
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:00 am -
1 stop13h 14m
Sun 11/153:25 pm -
1 stop16h 20m
Deal found 10/27![Delta logo]()
$549
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.
Fri 12/256:30 am -
1 stop13h 20m
Thu 1/74:55 pm -
Nonstop9h 45m
Deal found 10/30![Delta logo]()
$549
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.
Sat 12/1210:45 am -
1 stop14h 10m
Fri 1/84:55 pm -
Nonstop9h 45m
Deal found 10/29![KLM logo]()
$550
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:00 am -
1 stop13h 14m
Thu 12/34:05 pm -
1 stop15h 40m
Deal found 10/27![Air France logo]()
$551
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 October 30, 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 October 30, 2026.
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.
Fri 11/1312:20 pm -
Nonstop10h 30m
Thu 12/34:50 pm -
Nonstop9h 50m
Deal found 10/29![KLM logo]()
$544
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.
Tue 12/16:20 am -
1 stop15h 30m
Wed 6/27:20 am -
1 stop15h 25m
Deal found 10/29![Delta logo]()
$560
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:25 am -
Nonstop10h 00m
Sat 11/216:45 pm -
Nonstop9h 25m
Deal found 10/28![Multiple Airlines logo]()
$567
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:25 am -
Nonstop10h 00m
Sat 11/216:45 pm -
Nonstop9h 25m
Deal found 10/25![British Airways logo]()
$569
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:00 am -
2 stops33h 20m
Thu 12/34:05 pm -
1 stop15h 40m
Deal found 10/29![Virgin Atlantic logo]()
$574
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/207:40 am -
2 stops23h 36m
Sun 1/1010:52 am -
1 stop13h 03m
Deal found 10/25![United Airlines logo]()
$641
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 1/142:45 pm -
1 stop14h 08m
Mon 1/189:00 am -
1 stop19h 20m
Deal found 10/26![Alaska Airlines logo]()
$972
This Turkish 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:55 am -
2 stops44h 12m
Sat 11/217:05 pm -
1 stop30h 50m
Deal found 10/27![Turkish Airlines logo]()
$1,013
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:20 pm -
Nonstop10h 30m
Thu 11/198:30 am -
1 stop14h 35m
Deal found 10/27![KLM logo]()
$546
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.
Fri 1/156:30 am -
1 stop13h 19m
Fri 1/224:55 pm -
Nonstop9h 45m
Deal found 10/30![Delta logo]()
$561
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1010:00 am -
2 stops38h 07m
Thu 12/241:54 pm -
2 stops17h 51m
Deal found 10/29![Air France logo]()
$1,160
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 11/2612:20 pm -
Nonstop10h 30m
Wed 5/59:50 pm -
Nonstop9h 45m
Deal found 10/26![KLM logo]()
$547
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.
Wed 12/210:00 am -
1 stop13h 13m
Tue 6/86:35 pm -
1 stop13h 25m
Deal found 10/29![Delta logo]()
$568
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/217:50 am -
2 stops23h 28m
Tue 12/2911:44 pm -
1 stop22h 11m
Deal found 10/28![United Airlines logo]()
$665
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2012:20 pm -
Nonstop10h 25m
Wed 1/274:55 pm -
Nonstop9h 45m
Deal found 10/25![KLM logo]()
$561
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.
Thu 11/126:15 am -
2 stops18h 45m
Thu 11/262:35 pm -
2 stops20h 30m
Deal found 10/28![Multiple Airlines logo]()
$727
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1610:00 am -
2 stops20h 55m
Wed 1/137:31 am -
2 stops24h 14m
Deal found 10/30![Virgin Atlantic logo]()
$736
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.
Mon 1/1110:00 am -
2 stops20h 21m
Mon 1/256:00 am -
2 stops25h 45m
Deal found 10/26![Virgin Atlantic logo]()
$746
This Condor 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/274:10 pm -
1 stop30h 35m
Sun 4/115:45 pm -
1 stop13h 00m
Deal found 10/30![Condor logo]()
$1,714
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.
Wed 3/1010:00 am -
2 stops20h 02m
Sun 3/144:35 pm -
1 stop16h 10m
Deal found 10/26![Virgin Atlantic logo]()
$747
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:20 pm -
Nonstop10h 30m
Thu 11/264:50 pm -
Nonstop9h 50m
Deal found 10/28![KLM logo]()
$716
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/142:45 pm -
2 stops15h 54m
Mon 12/286:05 am -
1 stop22h 15m
Deal found 10/28![Alaska Airlines logo]()
$994
This Turkish 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/1510:55 am -
1 stop38h 15m
Fri 1/2210:52 am -
2 stops39h 03m
Deal found 10/30![Turkish Airlines logo]()
$1,016
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.
Thu 11/2610:00 am -
2 stops30h 45m
Wed 5/57:20 am -
2 stops24h 40m
Deal found 10/26![Virgin Atlantic logo]()
$767
This TAP AIR PORTUGAL 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/1510:40 am -
3 stops43h 01m
Fri 1/227:00 am -
2 stops24h 45m
Deal found 10/30![TAP AIR PORTUGAL logo]()
$2,095
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/267:00 am -
1 stop18h 00m
Sun 1/102:35 pm -
1 stop16h 30m
Deal found 10/28![Multiple Airlines logo]()
$991
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.
Wed 12/1612:05 pm -
2 stops17h 57m
Wed 1/1312:23 pm -
2 stops37h 17m
Deal found 10/30![United Airlines logo]()
$997
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.
Mon 12/1412:20 pm -
Nonstop10h 30m
Mon 12/218:25 am -
1 stop14h 40m
Deal found 10/30![KLM logo]()
$766
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.
Mon 1/1110:55 am -
2 stops40h 43m
Mon 1/2510:52 am -
2 stops39h 03m
Deal found 10/26![Turkish Airlines logo]()
$1,042
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 12/112:45 pm -
2 stops15h 54m
Wed 12/3011:03 am -
1 stop17h 17m
Deal found 10/26![Alaska Airlines logo]()
$1,051
Last-minute flights from London to WashingtonDiscover last-minute flight deals from London to Washington. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from London to Washington. Data last updated October 30, 2026 and is based on user searches.
This Flightcatchers 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 Flightcatchers is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:20 pm -
Nonstop10h 30m
Sun 11/811:08 am -
1 stop14h 47m
Deal found 10/26![Virgin Atlantic logo]()
$545
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.
Thu 11/512:35 pm -
1 stop15h 45m
Sat 11/216:45 pm -
Nonstop9h 25m
Deal found 10/26![British Airways logo]()
$551
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:00 am -
1 stop13h 14m
Sun 11/153:25 pm -
1 stop16h 20m
Deal found 10/27![Delta logo]()
$549
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:20 am -
1 stop15h 30m
Wed 11/253:25 pm -
1 stop14h 20m
Deal found 10/28![Air France logo]()
$542
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:35 am -
1 stop14h 25m
Sun 11/292:50 pm -
1 stop17h 00m
Deal found 10/29![Lufthansa logo]()
$543
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:20 am -
1 stop15h 17m
Sat 11/2111:07 pm -
1 stop26h 48m
Deal found 10/27![Virgin Atlantic logo]()
$552
This Globehunters 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/172:30 pm -
1 stop32h 07m
Tue 11/243:15 pm -
1 stop12h 35m
Deal found 10/27![Air Canada logo]()
$547
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 11/1912:20 pm -
Nonstop10h 30m
Thu 12/34:50 pm -
Nonstop9h 50m
Deal found 10/30![KLM logo]()
$544
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.
Thu 11/196:30 am -
1 stop13h 17m
Thu 12/36:00 am -
1 stop17h 50m
Deal found 10/29![Delta logo]()
$548
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:00 am -
1 stop13h 14m
Thu 12/34:05 pm -
1 stop15h 40m
Deal found 10/30![Multiple Airlines logo]()
$545
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:00 am -
1 stop13h 14m
Thu 12/34:05 pm -
1 stop15h 40m
Deal found 10/27![Air France logo]()
$551
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:20 pm -
Nonstop10h 30m
Wed 3/105:00 pm -
Nonstop9h 40m
Deal found 10/27![KLM logo]()
$546
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 October 30, 2026.
Search for one-way flight options from London to Washington. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
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 11/103:00 pm -
3 stops58h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$515
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.
Mon 1/1810:00 am -
1 stop13h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Delta logo]()
$516
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 11/96:00 am -
3 stops43h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$516
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:55 am -
2 stops18h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$518
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.
Fri 3/126:30 am -
2 stops16h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![KLM logo]()
$518
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.
Sun 1/109:40 am -
3 stops34h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$519
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.
Tue 12/83:15 pm -
3 stops50h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$519
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.
Thu 11/261:40 pm -
3 stops35h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$520
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/186:35 am -
2 stops35h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![United Airlines logo]()
$520
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/37:30 am -
3 stops21h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$521
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 12/97:30 am -
3 stops41h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$521
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 11/118:35 pm -
1 stop28h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Icelandair logo]()
$522
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $542 (British Airways) |
One-way from | $515 (Kiwi.com) |
Popular in | August |
Cheapest in | February |
Average price | $711 |
Good round-trip deal | $576 or less |
Good one-way deal | $557 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 October 30, 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
LGW London Gatwick - SEA Seattle/Tacoma Intl
LGWSEA
London Gatwick
Tue 2/9
10:00 am-10:21 pm
2 stops20h 21m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$527
LondonSeattle
LGW London Gatwick - SEA Seattle/Tacoma Intl
LGWSEA
London Gatwick
Mon 2/8
10:00 am-10:21 pm
2 stops20h 21m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$527
LondonSeattle
LGW London Gatwick - SEA Seattle/Tacoma Intl
LGWSEA
London Gatwick
Sat 1/30
10:00 am-10:21 pm
2 stops20h 21m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$527
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Wed 4/7
5:00 pm-7:10 pm
Nonstop10h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$530
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Tue 3/30
8:00 pm-5:55 pm
3 stops29h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$539
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Tue 12/8
7:40 am-11:44 pm
3 stops24h 04m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$541
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Fri 11/13
12:20 pm-2:50 pm
Nonstop10h 30m
Seattle/Tacoma Intl
Thu 12/3
4:50 pm-10:40 am
Nonstop9h 50m
$544
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Thu 11/5
12:20 pm-2:50 pm
Nonstop10h 30m
Seattle/Tacoma Intl
Thu 11/19
8:30 am-7:05 am
1 stop14h 35m
$546
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Thu 11/26
12:20 pm-2:50 pm
Nonstop10h 30m
Seattle/Tacoma Intl
Wed 5/5
9:50 pm-3:35 pm
Nonstop9h 45m
$547
LondonSeattle
LHR London Heathrow - SEA Seattle/Tacoma Intl
LHRSEA
London Heathrow
Tue 1/5
6:00 pm-1:13 pm
2 stops27h 13m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$556
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.
LHR-SEA
LGW-SEA
LHR-GEG
STN-SEA
LGW-GEG
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
LHR-SEA
LGW-SEA
LHR-GEG
STN-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 $645). Flying from London to State of Washington in July is currently the most expensive (average of $862). 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 October 30, 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.
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 $570 and $765 in April.The cheapest round-trip price found within the last 5 days was $542 on British Airways (Apr 12-Apr 21).
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 October 30, 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
Entertainment
7.0
Food
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Entertainment
7.0
Food
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Entertainment
7.0
Food
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Entertainment
7.0
Food
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Entertainment
7.0
Food
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Crew
8.5
Entertainment
7.0
Food
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
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 October 30, 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 6 airlines flying from London to Washington
Discover the top 6 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 October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$380 | Average$803 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$485 | Average$796 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$534 | Average$782 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$579 | Average$908 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$580 | Average$972 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$714 | Average$938 | FlexibilityNo cancel fee | On-time70% |