$298+ Cheap flights from London (LON) to Washington
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SEA
Apr 11 — Apr 181
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 März 12, 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 März 12, 2026.
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Fr 4/246:50 am
STN
- SEA
2 stops19h 05m
Multiple Airlines
Fr 5/17:00 pm
SEA
- STN
2 stops21h 50m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$533
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Mo 4/139:25 pm
LHR
- SEA
1 stop31h 15m
Icelandair
Mo 4/277:00 pm
SEA
- LHR
1 stop17h 20m
Icelandair
Deal found 3/10![Icelandair logo]()
$559
This The Travel House deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/153:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Mi 4/297:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Deal found 3/8![Icelandair logo]()
$573
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mi 4/226:30 am
STN
- SEA
2 stops19h 25m
Multiple Airlines
Mi 4/293:40 pm
SEA
- STN
2 stops17h 55m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$573
This Super.com deal was found by Cheapflights users on 3/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 4/133:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Mo 4/273:40 pm
SEA
- LGW
1 stop12h 05m
Icelandair
Deal found 3/11![Icelandair logo]()
$574
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mo 4/209:25 pm
LHR
- SEA
1 stop31h 15m
Icelandair
Sa 5/27:00 pm
SEA
- LHR
1 stop32h 55m
Icelandair
Deal found 3/8![Icelandair logo]()
$575
This The Travel House deal was found by Cheapflights users on 3/10. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/153:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Di 4/213:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 3/10![Icelandair logo]()
$576
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mi 4/226:15 am
LTN
- SEA
2 stops22h 25m
Multiple Airlines
Mi 4/293:40 pm
SEA
- LTN
2 stops21h 35m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$577
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mi 4/228:50 am
LGW
- SEA
2 stops17h 05m
Multiple Airlines
Mi 4/293:40 pm
SEA
- LGW
2 stops18h 10m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$578
This Mytrip deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Di 4/216:30 am
STN
- SEA
2 stops22h 10m
Multiple Airlines
Di 4/283:40 pm
SEA
- STN
2 stops21h 40m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$578
This Trip.com deal was found by Cheapflights users on 3/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/237:00 am
LHR
- SEA
2 stops42h 55m
Multiple Airlines
Do 4/307:00 pm
SEA
- LHR
2 stops17h 10m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$581
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Fr 4/243:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Fr 5/17:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Deal found 3/10![Icelandair logo]()
$582
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 März 12, 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 März 12, 2026.
This Mytrip deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Di 4/219:40 am
LTN
- SEA
2 stops19h 00m
Multiple Airlines
Di 4/283:40 pm
SEA
- LTN
2 stops15h 50m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$582
This Icelandair deal was found by Cheapflights users on 3/9. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/223:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
So 4/263:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 3/9![Icelandair logo]()
$611
This SWISS deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mo 4/209:25 am
LGW
- SEA
2 stops22h 02m
SWISS
Mo 5/47:00 am
SEA
- LGW
2 stops17h 20m
SWISS
Deal found 3/7![SWISS logo]()
$771
This Scandinavian Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mi 5/137:50 pm
LHR
- SEA
2 stops34h 55m
Scandinavian Airlines
So 5/243:55 pm
SEA
- LHR
2 stops18h 55m
Scandinavian Airlines
Deal found 3/7![Scandinavian Airlines logo]()
$790
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Do 9/35:00 pm
LHR
- SEA
Nonstop9h 55m
Alaska Airlines
Do 9/179:45 pm
SEA
- LHR
Nonstop9h 20m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$812
This Condor deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Di 5/1910:20 am
LGW
- SEA
1 stop13h 20m
Condor
Mo 5/256:10 pm
SEA
- LGW
1 stop16h 40m
Condor
Deal found 3/8![Condor logo]()
$814
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/167:30 am
LHR
- SEA
2 stops18h 30m
United Airlines
So 4/197:05 pm
SEA
- LHR
2 stops17h 35m
United Airlines
Deal found 3/10![United Airlines logo]()
$818
This British Airways deal was found by Cheapflights users on 3/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/229:50 am
LHR
- SEA
Nonstop9h 45m
British Airways
So 4/2612:34 pm
SEA
- LHR
1 stop35h 16m
British Airways
Deal found 3/9![British Airways logo]()
$818
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Do 4/910:25 am
LGW
- SEA
1 stop15h 13m
Delta
Mo 4/136:40 pm
SEA
- LGW
1 stop13h 20m
Delta
Deal found 3/7![Delta logo]()
$894
This Virgin Atlantic deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/169:20 am
LCY
- SEA
2 stops20h 30m
Virgin Atlantic
So 4/195:35 pm
SEA
- LCY
1 stop15h 45m
Virgin Atlantic
Deal found 3/10![Virgin Atlantic logo]()
$923
This KLM deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Di 5/1910:00 am
LCY
- SEA
1 stop14h 30m
KLM
Di 5/261:45 pm
SEA
- LCY
1 stop11h 45m
KLM
Deal found 3/8![KLM logo]()
$945
This Turkish Airlines deal was found by Cheapflights users on 3/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 4/255:45 pm
STN
- SEA
1 stop31h 30m
Turkish Airlines
Sa 5/27:10 pm
SEA
- STN
1 stop30h 45m
Turkish Airlines
Deal found 3/9![Turkish Airlines logo]()
$957
This Icelandair deal was found by Cheapflights users on 3/9. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/229:25 pm
LHR
- SEA
1 stop28h 30m
Icelandair
So 4/267:00 pm
SEA
- LHR
1 stop17h 20m
Icelandair
Deal found 3/9![Icelandair logo]()
$640
This Icelandair deal was found by Cheapflights users on 3/9. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 4/259:25 pm
LHR
- SEA
1 stop31h 15m
Icelandair
Sa 5/27:00 pm
SEA
- LHR
1 stop17h 20m
Icelandair
Deal found 3/9![Icelandair logo]()
$650
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 4/269:00 am
LTN
- SEA
3 stops32h 38m
Multiple Airlines
So 5/37:00 pm
SEA
- LTN
2 stops16h 40m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$716
This SWISS deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mo 4/209:15 am
LCY
- SEA
2 stops22h 12m
SWISS
Mo 5/47:00 am
SEA
- LCY
2 stops21h 35m
SWISS
Deal found 3/7![SWISS logo]()
$783
This Scandinavian Airlines deal was found by Cheapflights users on 3/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 6/187:30 pm
LHR
- SEA
1 stop26h 15m
Scandinavian Airlines
Mi 9/912:00 pm
SEA
- LHR
2 stops21h 40m
Scandinavian Airlines
Deal found 3/10![Scandinavian Airlines logo]()
$812
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mo 4/137:25 am
LHR
- PDX
2 stops19h 09m
United Airlines
Mo 4/2012:50 pm
PDX
- LHR
1 stop15h 35m
United Airlines
Deal found 3/7![United Airlines logo]()
$856
This Condor deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
So 6/217:35 pm
LGW
- PDX
1 stop25h 35m
Condor
Mo 8/33:30 pm
PDX
- LGW
1 stop15h 10m
Condor
Deal found 3/7![Condor logo]()
$863
This British Airways deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mo 4/203:40 pm
LHR
- PDX
Nonstop10h 00m
British Airways
Mo 5/46:22 am
PDX
- LHR
1 stop16h 28m
British Airways
Deal found 3/8![British Airways logo]()
$880
This SWISS deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mo 4/139:25 am
LGW
- SEA
2 stops21h 17m
SWISS
Di 4/2810:48 am
SEA
- LGW
2 stops37h 37m
SWISS
Deal found 3/7![SWISS logo]()
$810
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Do 4/96:05 am
LTN
- PDX
3 stops35h 05m
Multiple Airlines
Mo 4/273:30 pm
PDX
- LTN
3 stops25h 40m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$812
This Virgin Atlantic deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Di 4/215:50 pm
LCY
- SEA
1 stop25h 55m
Virgin Atlantic
Di 4/281:40 pm
SEA
- LCY
1 stop19h 00m
Virgin Atlantic
Deal found 3/7![Virgin Atlantic logo]()
$925
This Delta deal was found by Cheapflights users on 3/10. 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.
Mo 9/76:30 am
LHR
- PDX
2 stops18h 03m
Delta
Fr 9/117:10 am
PDX
- LHR
1 stop21h 00m
Delta
Deal found 3/10![Delta logo]()
$930
This Icelandair deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Di 4/143:40 pm
LGW
- PDX
1 stop34h 20m
Icelandair
Di 4/213:30 pm
PDX
- LGW
1 stop15h 10m
Icelandair
Deal found 3/8![Icelandair logo]()
$774
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/2910:50 am
LHR
- PDX
2 stops19h 44m
United Airlines
So 5/310:15 pm
PDX
- LHR
1 stop14h 25m
United Airlines
Deal found 3/9![United Airlines logo]()
$866
This Turkish Airlines deal was found by Cheapflights users on 3/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/225:45 pm
STN
- SEA
1 stop31h 30m
Turkish Airlines
So 4/267:10 pm
SEA
- STN
1 stop37h 30m
Turkish Airlines
Deal found 3/9![Turkish Airlines logo]()
$967
This British Airways deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mo 4/138:55 am
LHR
- PDX
1 stop16h 04m
British Airways
Mo 4/207:30 pm
PDX
- LHR
Nonstop9h 30m
British Airways
Deal found 3/7![British Airways logo]()
$885
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mi 5/139:15 am
LTN
- SEA
2 stops32h 25m
Multiple Airlines
So 5/177:00 pm
SEA
- LTN
2 stops19h 20m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$835
This SWISS deal was found by Cheapflights users on 3/10. 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.
Do 4/169:25 am
LGW
- SEA
2 stops21h 17m
SWISS
So 4/197:00 am
SEA
- LGW
2 stops17h 25m
SWISS
Deal found 3/10![SWISS logo]()
$841
Last-minute flights from London to WashingtonDiscover last-minute flight deals from London to Washington. Data last updated März 12, 2026 and is based on user searches.
Discover last-minute flight deals from London to Washington. Data last updated März 12, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Mo 4/139:25 pm
LHR
- SEA
1 stop31h 15m
Icelandair
Mo 4/277:00 pm
SEA
- LHR
1 stop17h 20m
Icelandair
Deal found 3/10![Icelandair logo]()
$559
This Super.com deal was found by Cheapflights users on 3/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 4/133:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Mo 4/273:40 pm
SEA
- LGW
1 stop12h 05m
Icelandair
Deal found 3/11![Icelandair logo]()
$574
This The Travel House deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/153:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Mi 4/297:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Deal found 3/8![Icelandair logo]()
$573
This The Travel House deal was found by Cheapflights users on 3/10. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/153:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Di 4/213:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 3/10![Icelandair logo]()
$576
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mo 4/209:25 pm
LHR
- SEA
1 stop31h 15m
Icelandair
Sa 5/27:00 pm
SEA
- LHR
1 stop32h 55m
Icelandair
Deal found 3/8![Icelandair logo]()
$575
This Mytrip deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Di 4/216:30 am
STN
- SEA
2 stops22h 10m
Multiple Airlines
Di 4/283:40 pm
SEA
- STN
2 stops21h 40m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$578
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mi 4/226:30 am
STN
- SEA
2 stops19h 25m
Multiple Airlines
Mi 4/293:40 pm
SEA
- STN
2 stops17h 55m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$573
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mi 4/226:15 am
LTN
- SEA
2 stops22h 25m
Multiple Airlines
Mi 4/293:40 pm
SEA
- LTN
2 stops21h 35m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$577
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Mi 4/228:50 am
LGW
- SEA
2 stops17h 05m
Multiple Airlines
Mi 4/293:40 pm
SEA
- LGW
2 stops18h 10m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$578
This Trip.com deal was found by Cheapflights users on 3/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/237:00 am
LHR
- SEA
2 stops42h 55m
Multiple Airlines
Do 4/307:00 pm
SEA
- LHR
2 stops17h 10m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$581
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Fr 4/246:50 am
STN
- SEA
2 stops19h 05m
Multiple Airlines
Fr 5/17:00 pm
SEA
- STN
2 stops21h 50m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$533
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Fr 4/243:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Fr 5/17:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Deal found 3/10![Icelandair logo]()
$582
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 März 12, 2026.
Search for one-way flight options from London to Washington. Find affordable one-way fares based on user searches. Data last updated März 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Fr 6/510:20 am
LGW
- PDX
1 stop35h 52m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Mo 4/2710:45 pm
STN
- PDX
2 stops47h 05m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Di 5/129:15 am
LTN
- PDX
2 stops36h 35m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$367
This Norse deal was found by Cheapflights users on 3/10. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 6/410:20 am
LGW
- PDX
1 stop33h 13m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Mo 5/49:50 pm
LTN
- PDX
3 stops48h 00m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Fr 6/57:05 am
STN
- PDX
3 stops39h 07m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Di 4/288:20 am
STN
- PDX
3 stops59h 30m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
So 4/269:15 am
LTN
- PDX
2 stops36h 35m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Sa 4/252:45 pm
LTN
- PDX
2 stops55h 05m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Do 6/49:15 am
LTN
- PDX
2 stops36h 35m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Di 5/59:15 am
LTN
- PDX
2 stops36h 35m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Mi 5/68:15 am
STN
- PDX
3 stops35h 35m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$393
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 März 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $533 (Mytrip) |
One-way from | $298 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $720 |
Good round-trip deal | $814 or less |
Good one-way deal | $598 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 2,558,603 searches. Data last updated März 12, 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
LTN - SEA
LTNSEA
London Luton
Di 4/21
9:40 am-8:40 pm
2 stops19h 00m
Seattle/Tacoma Intl
Di 4/28
3:40 pm-3:30 pm
2 stops15h 50m
$582
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Mi 4/22
3:40 pm-8:40 pm
1 stop13h 00m
Seattle/Tacoma Intl
So 4/26
3:40 pm-2:40 pm
1 stop15h 00m
$611
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Mi 4/22
9:25 pm-5:55 pm
1 stop28h 30m
Seattle/Tacoma Intl
So 4/26
7:00 pm-8:20 pm
1 stop17h 20m
$640
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Sa 4/25
9:25 pm-8:40 pm
1 stop31h 15m
Seattle/Tacoma Intl
Sa 5/2
7:00 pm-8:20 pm
1 stop17h 20m
$650
LondonSeattle
LTN - SEA
LTNSEA
London Luton
So 4/26
9:00 am-9:38 am
3 stops32h 38m
Seattle/Tacoma Intl
So 5/3
7:00 pm-7:40 pm
2 stops16h 40m
$716
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Mo 4/20
9:25 am-11:27 pm
2 stops22h 02m
Seattle/Tacoma Intl
Mo 5/4
7:00 am-8:20 am
2 stops17h 20m
$771
LondonPortland
LGW - PDX
LGWPDX
London Gatwick
Di 4/14
3:40 pm-6:00 pm
1 stop34h 20m
Portland
Di 4/21
3:30 pm-2:40 pm
1 stop15h 10m
$774
LondonSeattle
LCY - SEA
LCYSEA
London City
Mo 4/20
9:15 am-11:27 pm
2 stops22h 12m
Seattle/Tacoma Intl
Mo 5/4
7:00 am-12:35 pm
2 stops21h 35m
$783
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Mi 5/13
7:50 pm-10:45 pm
2 stops34h 55m
Seattle/Tacoma Intl
So 5/24
3:55 pm-6:50 pm
2 stops18h 55m
$790
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Mo 4/13
9:25 am-10:42 pm
2 stops21h 17m
Seattle/Tacoma Intl
Di 4/28
10:48 am-8:25 am
2 stops37h 37m
$810
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.
STN-PDX
LHR-SEA
LGW-SEA
LCY-PDX
LGW-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
STN-PDX
LHR-SEA
LGW-SEA
LCY-PDX
What is the cheapest month to book a flight from London to State of Washington?
Currently, January is the cheapest month in which you can book a flight from London to State of Washington (average of $468). Flying from London to State of Washington in August is currently the most expensive (average of $625). 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 März 12, 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 März 12, 2026.
The most flights from LON to USWA are scheduled on a Monday (15 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 on average).
How much does it cost to fly round-trip from London to State of Washington?
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 März 12, 2026.
Read through reviews of airlines operating flights from London to Washington, such as Delta,Virgin Atlantic, andAir France. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for London to Washington
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Complete your trip
Complete your trip to Washington by adding a car rental and/or hotel reservation to your travel itinerary.
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 März 12, 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 5 airlines flying from London to Washington
Discover the top 5 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 2,558,603 searches. Data last updated März 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$501 | Average$899 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$574 | Average$801 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$594 | Average$1,009 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$618 | Average$891 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$667 | Average$795 | FlexibilityNo cancel fee | On-time70% |