$340+ Cheap flights from the United Kingdom 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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
Mar 1 — Mar 81
1 adult, Economy
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Cheapest flights from United Kingdom to WashingtonExplore the most affordable flight options available from United Kingdom to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2026.
Explore the most affordable flight options available from United Kingdom to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2026.
This Ticket deal was found by Cheapflights users on 1/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1612:20 pm
LHR
- SEA
Nonstop10h 25m
Virgin Atlantic
Mon 3/211:35 am
SEA
- LHR
1 stop15h 05m
Virgin Atlantic
Deal found 1/30![Virgin Atlantic logo]()
$480
This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/103:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Mon 4/203:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 1/28![Icelandair logo]()
$481
This deal was found by Cheapflights users on 1/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:45 pm
LHR
- SEA
Nonstop10h 26m
Delta
Mon 6/111:15 am
SEA
- LHR
1 stop15h 05m
Delta
Deal found 1/27![Delta logo]()
$482
This Icelandair deal was found by Cheapflights users on 1/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:25 pm
LHR
- SEA
1 stop22h 20m
Icelandair
Thu 9/173:40 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Deal found 1/29![Icelandair logo]()
$484
This Ticket deal was found by Cheapflights users on 1/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/56:20 am
LHR
- SEA
1 stop13h 05m
Virgin Atlantic
Wed 2/184:55 pm
SEA
- LHR
Nonstop9h 35m
Virgin Atlantic
Deal found 1/28![Virgin Atlantic logo]()
$485
This Icelandair deal was found by Cheapflights users on 1/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:25 pm
LHR
- SEA
1 stop28h 30m
Icelandair
Sat 5/93:40 pm
SEA
- LHR
1 stop20h 40m
Icelandair
Deal found 1/29![Icelandair logo]()
$486
This The Travel House deal was found by Cheapflights users on 1/28. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:30 am
LHR
- SEA
1 stop16h 30m
Finnair
Tue 5/121:29 pm
SEA
- LHR
1 stop14h 46m
Finnair
Deal found 1/28![Finnair logo]()
$487
This Trip.com deal was found by Cheapflights users on 1/27. 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.
Tue 2/1012:15 pm
LHR
- SEA
1 stop12h 45m
Icelandair
Wed 2/252:35 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Deal found 1/27![Icelandair logo]()
$491
This Booking.com deal was found by Cheapflights users on 1/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/129:25 pm
LHR
- SEA
1 stop31h 15m
Icelandair
Sat 4/183:40 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Deal found 1/30![Icelandair logo]()
$492
This FlightHub deal was found by Cheapflights users on 1/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/91:05 pm
LHR
- SEA
1 stop12h 50m
Icelandair
Mon 5/43:40 pm
SEA
- LHR
1 stop20h 40m
Icelandair
Deal found 1/29![Icelandair logo]()
$494
This Icelandair deal was found by Cheapflights users on 1/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/248:35 pm
LHR
- SEA
1 stop28h 25m
Icelandair
Mon 3/303:40 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Deal found 1/28![Icelandair logo]()
$495
This Ticket deal was found by Cheapflights users on 1/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/166:30 am
LHR
- SEA
1 stop13h 10m
KLM
Mon 3/28:00 am
SEA
- LHR
1 stop15h 05m
KLM
Deal found 1/30![KLM logo]()
$496
Best flights from United Kingdom to WashingtonDiscover carefully curated flight deals from United Kingdom to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 30, 2026.
Discover carefully curated flight deals from United Kingdom to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 30, 2026.
This Icelandair deal was found by Cheapflights users on 1/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:25 pm
LHR
- SEA
1 stop28h 30m
Icelandair
Fri 5/83:40 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Deal found 1/29![Icelandair logo]()
$486
This KLM deal was found by Cheapflights users on 1/30. 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 3/26:30 am
LHR
- SEA
1 stop13h 05m
KLM
Mon 3/167:25 pm
SEA
- LHR
Nonstop9h 30m
KLM
Deal found 1/30![KLM logo]()
$530
This Delta deal was found by Cheapflights users on 1/29. 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 5/56:30 am
LHR
- SEA
1 stop13h 12m
Delta
Thu 5/149:45 pm
SEA
- LHR
Nonstop9h 50m
Delta
Deal found 1/29![Delta logo]()
$546
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Wed 3/117:30 am
LHR
- SEA
2 stops20h 44m
United Airlines
Sat 3/2112:36 pm
SEA
- LHR
2 stops17h 54m
United Airlines
Deal found 1/29![United Airlines logo]()
$550
This Virgin Atlantic deal was found by Cheapflights users on 1/30. 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.
Mon 2/168:05 pm
LCY
- SEA
1 stop23h 35m
Virgin Atlantic
Mon 3/23:05 pm
SEA
- LCY
1 stop19h 20m
Virgin Atlantic
Deal found 1/30![Virgin Atlantic logo]()
$577
This oojo deal was found by Cheapflights users on 1/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:50 am
LCY
- SEA
1 stop19h 30m
British Airways
Mon 3/169:05 pm
SEA
- LCY
1 stop14h 30m
British Airways
Deal found 1/30![British Airways logo]()
$600
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Tue 2/105:55 am
STN
- SEA
2 stops19h 05m
Multiple Airlines
Wed 2/252:35 pm
SEA
- STN
2 stops23h 40m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$619
This Globehunters deal was found by Cheapflights users on 1/30. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:15 am
LCY
- SEA
1 stop35h 05m
Lufthansa
Thu 5/212:10 pm
SEA
- LCY
1 stop19h 45m
Lufthansa
Deal found 1/30![Lufthansa logo]()
$650
This SWISS deal was found by Cheapflights users on 1/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:25 am
LGW
- SEA
2 stops17h 05m
SWISS
Tue 5/199:55 am
SEA
- LGW
2 stops23h 55m
SWISS
Deal found 1/29![SWISS logo]()
$729
This The Travel House deal was found by Cheapflights users on 1/28. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:35 am
MAN
- SEA
2 stops20h 42m
Scandinavian Airlines
Sun 5/313:55 pm
SEA
- MAN
1 stop18h 35m
Scandinavian Airlines
Deal found 1/28![Scandinavian Airlines logo]()
$745
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:30 pm
LGW
- PDX
2 stops30h 37m
American Airlines
Wed 3/115:00 am
PDX
- LGW
2 stops21h 00m
American Airlines
Deal found 1/27![American Airlines logo]()
$910
This Turkish Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 5/56:15 am
STN
- SEA
1 stop19h 00m
Turkish Airlines
Tue 5/127:10 pm
SEA
- STN
1 stop37h 40m
Turkish Airlines
Deal found 1/28![Turkish Airlines logo]()
$950
This Icelandair deal was found by Cheapflights users on 1/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:25 pm
LHR
- SEA
1 stop28h 30m
Icelandair
Tue 5/127:00 pm
SEA
- LHR
1 stop17h 20m
Icelandair
Deal found 1/29![Icelandair logo]()
$486
This Icelandair deal was found by Cheapflights users on 1/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:25 pm
LHR
- SEA
1 stop28h 30m
Icelandair
Fri 5/87:00 pm
SEA
- LHR
1 stop17h 20m
Icelandair
Deal found 1/29![Icelandair logo]()
$486
This Delta deal was found by Cheapflights users on 1/29. 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 5/68:40 am
LHR
- SEA
1 stop15h 50m
Delta
Wed 5/139:45 pm
SEA
- LHR
Nonstop9h 50m
Delta
Deal found 1/29![Delta logo]()
$546
This KLM deal was found by Cheapflights users on 1/29. 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 3/162:30 pm
LHR
- SEA
Nonstop10h 05m
KLM
Mon 3/237:25 pm
SEA
- LHR
Nonstop9h 30m
KLM
Deal found 1/29![KLM logo]()
$547
This Icelandair deal was found by Cheapflights users on 1/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:25 pm
LHR
- SEA
1 stop28h 30m
Icelandair
Tue 5/123:40 pm
SEA
- LHR
1 stop20h 40m
Icelandair
Deal found 1/29![Icelandair logo]()
$486
This Virgin Atlantic deal was found by Cheapflights users on 1/29. 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.
Tue 4/148:25 am
LCY
- SEA
2 stops21h 24m
Virgin Atlantic
Tue 4/216:00 am
SEA
- LCY
2 stops17h 55m
Virgin Atlantic
Deal found 1/29![Virgin Atlantic logo]()
$597
This Delta deal was found by Cheapflights users on 1/29. 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 5/66:30 am
LHR
- SEA
1 stop13h 12m
Delta
Tue 5/129:45 pm
SEA
- LHR
Nonstop9h 50m
Delta
Deal found 1/29![Delta logo]()
$546
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:00 am
LCY
- SEA
1 stop14h 30m
Multiple Airlines
Tue 5/129:30 am
SEA
- LCY
2 stops15h 20m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$647
This KLM deal was found by Cheapflights users on 1/29. 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.
Tue 4/1410:00 am
LCY
- SEA
1 stop14h 30m
KLM
Mon 4/201:45 pm
SEA
- LCY
1 stop11h 45m
KLM
Deal found 1/29![KLM logo]()
$591
This Delta deal was found by Cheapflights users on 1/29. 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.
Mon 2/1612:20 pm
LHR
- SEA
Nonstop10h 25m
Delta
Mon 2/236:10 am
SEA
- LHR
1 stop16h 55m
Delta
Deal found 1/29![Delta logo]()
$548
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/106:25 am
MAN
- SEA
2 stops19h 51m
Lufthansa
Wed 3/47:00 am
SEA
- MAN
2 stops25h 55m
Lufthansa
Deal found 1/27![Lufthansa logo]()
$672
This Icelandair deal was found by Cheapflights users on 1/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/153:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Sat 4/183:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 1/29![Icelandair logo]()
$508
This Virgin Atlantic deal was found by Cheapflights users on 1/30. 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.
Thu 3/58:05 pm
LCY
- SEA
1 stop23h 30m
Virgin Atlantic
Tue 3/106:00 am
SEA
- LCY
2 stops18h 15m
Virgin Atlantic
Deal found 1/30![Virgin Atlantic logo]()
$619
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 3/158:05 am
LTN
- SEA
1 stop18h 15m
Multiple Airlines
Sun 3/229:05 pm
SEA
- LTN
1 stop12h 40m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$648
This Icelandair deal was found by Cheapflights users on 1/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Thu 9/103:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 1/28![Icelandair logo]()
$519
This The Travel House deal was found by Cheapflights users on 1/29. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:10 pm
MAN
- SEA
2 stops35h 07m
Scandinavian Airlines
Sun 6/143:55 pm
SEA
- MAN
1 stop18h 35m
Scandinavian Airlines
Deal found 1/29![Scandinavian Airlines logo]()
$764
This SWISS deal was found by Cheapflights users on 1/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:25 am
LGW
- SEA
2 stops17h 05m
SWISS
Tue 5/129:55 am
SEA
- LGW
2 stops23h 55m
SWISS
Deal found 1/28![SWISS logo]()
$766
This Delta deal was found by Cheapflights users on 1/29. 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.
Mon 4/1310:00 am
LCY
- SEA
1 stop14h 30m
Delta
Tue 4/215:30 pm
SEA
- LCY
1 stop15h 10m
Delta
Deal found 1/29![Delta logo]()
$591
Last-minute flights from United Kingdom to WashingtonDiscover last-minute flight deals from United Kingdom to Washington. Data last updated January 30, 2026 and is based on user searches.
Discover last-minute flight deals from United Kingdom to Washington. Data last updated January 30, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 1/28. 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.
Wed 2/48:35 pm
LHR
- SEA
1 stop28h 25m
Icelandair
Tue 2/102:35 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Deal found 1/28![Icelandair logo]()
$498
This The Travel House deal was found by Cheapflights users on 1/28. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/44:30 pm
LHR
- SEA
1 stop34h 48m
Finnair
Tue 2/108:15 am
SEA
- LHR
2 stops19h 45m
Finnair
Deal found 1/28![Finnair logo]()
$503
This Ticket deal was found by Cheapflights users on 1/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/56:20 am
LHR
- SEA
1 stop13h 05m
Virgin Atlantic
Wed 2/184:55 pm
SEA
- LHR
Nonstop9h 35m
Virgin Atlantic
Deal found 1/28![Virgin Atlantic logo]()
$485
This Trip.com deal was found by Cheapflights users on 1/27. 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.
Tue 2/1012:15 pm
LHR
- SEA
1 stop12h 45m
Icelandair
Wed 2/252:35 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Deal found 1/27![Icelandair logo]()
$491
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1011:55 am
LGW
- SEA
1 stop13h 05m
Icelandair
Wed 2/252:35 pm
SEA
- LGW
1 stop12h 20m
Icelandair
Deal found 1/27![Icelandair logo]()
$523
This The Travel House deal was found by Cheapflights users on 1/28. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:20 am
LHR
- SEA
1 stop21h 27m
Finnair
Wed 2/1812:27 pm
SEA
- LHR
1 stop34h 53m
Finnair
Deal found 1/28![Finnair logo]()
$506
This Ticket deal was found by Cheapflights users on 1/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1612:20 pm
LHR
- SEA
Nonstop10h 25m
Virgin Atlantic
Mon 3/211:35 am
SEA
- LHR
1 stop15h 05m
Virgin Atlantic
Deal found 1/30![Virgin Atlantic logo]()
$480
This Ticket deal was found by Cheapflights users on 1/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/166:30 am
LHR
- SEA
1 stop13h 10m
KLM
Mon 3/28:00 am
SEA
- LHR
1 stop15h 05m
KLM
Deal found 1/30![KLM logo]()
$496
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 2/249:25 am
LHR
- SEA
Nonstop10h 05m
Multiple Airlines
Tue 3/33:41 pm
SEA
- LHR
1 stop15h 09m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$504
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2511:55 am
LGW
- SEA
1 stop13h 05m
Icelandair
Wed 3/42:35 pm
SEA
- LGW
1 stop12h 20m
Icelandair
Deal found 1/28![Icelandair logo]()
$502
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 2/252:55 pm
LHR
- SEA
Nonstop10h 00m
American Airlines
Wed 3/46:50 pm
SEA
- LHR
Nonstop9h 30m
American Airlines
Deal found 1/28![American Airlines logo]()
$502
This TravelUp deal was found by Cheapflights users on 1/29. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:10 pm
LHR
- SEA
1 stop14h 10m
British Airways
Mon 3/97:50 pm
SEA
- LHR
Nonstop9h 30m
British Airways
Deal found 1/29![British Airways logo]()
$507
One-way flights from United Kingdom to WashingtonSearch for one-way flight options from United Kingdom to Washington. Find affordable one-way fares based on user searches. Data last updated January 30, 2026.
Search for one-way flight options from United Kingdom to Washington. Find affordable one-way fares based on user searches. Data last updated January 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Mon 3/169:30 pm
MAN
- SEA
2 stops28h 48m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:50 pm
STN
- PDX
2 stops33h 23m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Tue 5/127:40 pm
MAN
- SEA
3 stops43h 29m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:05 pm
LGW
- PDX
2 stops33h 08m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 1/30. 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.
Sat 5/1610:25 am
STN
- PDX
3 stops55h 07m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 2/192:00 pm
LGW
- PDX
3 stops39h 23m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/146:30 am
STN
- PDX
3 stops23h 11m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 3/18:40 am
MAN
- SEA
3 stops57h 48m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 3/155:55 am
STN
- PDX
3 stops58h 47m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$447
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 4/296:40 am
LHR
- PDX
3 stops37h 17m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 1/30. 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.
Sat 5/169:15 am
LGW
- PDX
2 stops36h 35m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$474
This Kiwi.com deal was found by Cheapflights users on 1/30. 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 3/106:30 am
LHR
- SEA
1 stop13h 40m
Lufthansa
Deal found 1/30![Lufthansa logo]()
$475
Find flight deals from United Kingdom to Washington
Keep the following information in mind while searching for United Kingdom to Washington flight deals. Data was last updated January 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $481 (FlightHub) |
One-way from | $340 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $644 |
Good round-trip deal | $593 or less |
Good one-way deal | $609 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from United Kingdom 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 January 30, 2026.
Use the filters below to find and compare flights from the United Kingdom to Washington that are best for you.
Fly from
United Kingdom
Fly to
Washington
Route
Depart
Return
Price
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Mon 5/4
9:25 pm-5:55 pm
1 stop28h 30m
Seattle/Tacoma Intl
Fri 5/8
3:40 pm-11:55 am
1 stop12h 15m
$486
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Sat 5/2
9:25 pm-5:55 pm
1 stop28h 30m
Seattle/Tacoma Intl
Tue 5/12
7:00 pm-8:20 pm
1 stop17h 20m
$486
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Fri 5/1
9:25 pm-5:55 pm
1 stop28h 30m
Seattle/Tacoma Intl
Fri 5/8
7:00 pm-8:20 pm
1 stop17h 20m
$486
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Fri 5/1
9:25 pm-5:55 pm
1 stop28h 30m
Seattle/Tacoma Intl
Tue 5/12
3:40 pm-8:20 pm
1 stop20h 40m
$486
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Wed 4/15
3:40 pm-8:40 pm
1 stop13h 00m
Seattle/Tacoma Intl
Sat 4/18
3:40 pm-2:40 pm
1 stop15h 00m
$508
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Tue 6/9
3:40 pm-8:40 pm
1 stop13h 00m
Seattle/Tacoma Intl
Thu 9/10
3:40 pm-2:40 pm
1 stop15h 00m
$519
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Mon 3/2
6:30 am-11:35 am
1 stop13h 05m
Seattle/Tacoma Intl
Mon 3/16
7:25 pm-11:55 am
Nonstop9h 30m
$530
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Tue 5/5
6:30 am-11:42 am
1 stop13h 12m
Seattle/Tacoma Intl
Thu 5/14
9:45 pm-3:35 pm
Nonstop9h 50m
$546
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Wed 5/6
8:40 am-4:30 pm
1 stop15h 50m
Seattle/Tacoma Intl
Wed 5/13
9:45 pm-3:35 pm
Nonstop9h 50m
$546
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Wed 5/6
6:30 am-11:42 am
1 stop13h 12m
Seattle/Tacoma Intl
Tue 5/12
9:45 pm-3:35 pm
Nonstop9h 50m
$546
Showing 1-10 of 60 results
Best time to book a flight from United Kingdom to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from United Kingdom with our price prediction graph.
MAN-SEA
LGW-SEA
LCY-SEA
LHR-SEA
LCY-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 the United Kingdom to Washington
GB0-USWA
MAN-SEA
LGW-SEA
LCY-SEA
LHR-SEA
What is the cheapest month to book a flight from United Kingdom to State of Washington?
Currently, March is the cheapest month in which you can book a flight from United Kingdom to State of Washington (average of $407). Flying from United Kingdom to State of Washington in August is currently the most expensive (average of $617). 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 GB to WA?
Find hourly flight availability from United Kingdom 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 January 30, 2026.
When flying from United Kingdom 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 United Kingdom to State of Washington
Explore weekly flight availability from United Kingdom 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 January 30, 2026.
The most flights from GB0 to USWA are scheduled on a Friday (17 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 on average).
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 January 30, 2026.
Peruse reviews from past customers who have flown with Delta, Virgin Atlantic, and American Airlines from the United Kingdom to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from United Kingdom 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.
Alternative routes for United Kingdom to Washington
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from United Kingdom to Washington
Discover the top 6 airlines that operate flights from United Kingdom 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 January 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$467 | Average$833 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$551 | Average$880 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$574 | Average$801 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$575 | Average$864 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$589 | Average$854 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$780 | Average$780 | FlexibilityNo cancel fee | On-time77% |