$394+ Cheap flights from the United Kingdom to Seattle (SEA)
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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
May 24 — May 311
Round-trip
1 adult, Economy
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Cheapest flights from United Kingdom to SeattleExplore the most affordable flight options available from United Kingdom to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
Explore the most affordable flight options available from United Kingdom to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
This Mytrip deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:00 am
MAN
- SEA
2 stops22h 40m
Multiple Airlines
Thu 5/283:40 pm
SEA
- MAN
2 stops22h 55m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$671
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 6/36:30 am
STN
- SEA
1 stop18h 40m
Multiple Airlines
Wed 6/107:10 pm
SEA
- STN
1 stop20h 10m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$697
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 6/49:05 am
GLA
- SEA
1 stop16h 05m
Multiple Airlines
Thu 6/117:10 pm
SEA
- GLA
1 stop17h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$699
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 6/412:00 pm
STN
- SEA
1 stop13h 10m
Multiple Airlines
Thu 6/117:10 pm
SEA
- STN
1 stop19h 15m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$701
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 6/36:15 am
LTN
- SEA
1 stop18h 55m
Multiple Airlines
Wed 6/107:10 pm
SEA
- LTN
1 stop18h 05m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$701
This Icelandair deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/243:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Fri 7/103:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 4/23![Icelandair logo]()
$704
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:30 am
STN
- SEA
3 stops35h 10m
Multiple Airlines
Tue 9/87:00 pm
SEA
- STN
2 stops17h 35m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$704
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/299:25 pm
LHR
- SEA
1 stop22h 20m
Icelandair
Wed 7/811:25 pm
SEA
- LHR
1 stop12h 55m
Icelandair
Deal found 4/23![Icelandair logo]()
$704
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/303:40 pm
LGW
- SEA
1 stop28h 05m
Icelandair
Thu 7/97:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Deal found 4/23![Icelandair logo]()
$705
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:30 am
STN
- SEA
3 stops35h 10m
Multiple Airlines
Mon 9/73:40 pm
SEA
- STN
2 stops22h 45m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$705
This Icelandair deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/249:25 pm
LHR
- SEA
1 stop22h 20m
Icelandair
Wed 7/811:25 pm
SEA
- LHR
1 stop12h 55m
Icelandair
Deal found 4/23![Icelandair logo]()
$705
This Icelandair deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Sun 6/283:40 pm
LGW
- SEA
1 stop28h 05m
Icelandair
Thu 7/93:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 4/22![Icelandair logo]()
$706
Best flights from United Kingdom to SeattleDiscover carefully curated flight deals from United Kingdom to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
Discover carefully curated flight deals from United Kingdom to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
This Icelandair deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/293:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Thu 6/1111:25 pm
SEA
- LGW
1 stop31h 15m
Icelandair
Deal found 4/21![Icelandair logo]()
$765
This British Airways deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/104:30 pm
LHR
- SEA
Nonstop9h 55m
British Airways
Mon 6/156:00 am
SEA
- LHR
1 stop19h 05m
British Airways
Deal found 4/19![British Airways logo]()
$765
This Booking.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 10/87:10 pm
EDI
- SEA
1 stop26h 35m
Scandinavian Airlines
Sun 10/113:55 pm
SEA
- EDI
2 stops16h 20m
Scandinavian Airlines
Deal found 4/23![Scandinavian Airlines logo]()
$790
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Sun 6/75:00 pm
LHR
- SEA
Nonstop9h 50m
Alaska Airlines
Thu 7/29:45 pm
SEA
- LHR
Nonstop9h 20m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$800
This Virgin Atlantic deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:45 am
LHR
- SEA
1 stop12h 54m
Virgin Atlantic
Sun 10/116:20 pm
SEA
- LHR
Nonstop9h 50m
Virgin Atlantic
Deal found 4/23![Virgin Atlantic logo]()
$800
This Mytrip deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Fri 5/2211:30 am
STN
- SEA
3 stops34h 15m
Multiple Airlines
Fri 5/293:55 pm
SEA
- STN
3 stops23h 25m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$802
This KLM deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Sun 6/711:40 am
LHR
- SEA
Nonstop10h 20m
KLM
Sun 6/146:20 pm
SEA
- LHR
Nonstop9h 50m
KLM
Deal found 4/23![KLM logo]()
$804
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:45 pm
LHR
- SEA
Nonstop10h 28m
Delta
Thu 9/179:50 am
SEA
- LHR
1 stop18h 25m
Delta
Deal found 4/23![Delta logo]()
$808
This Expedia deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Sun 6/78:40 am
BRS
- SEA
1 stop16h 30m
Aer Lingus
Sun 6/147:10 pm
SEA
- BRS
1 stop12h 50m
Aer Lingus
Deal found 4/23![Aer Lingus logo]()
$826
This JetBlue deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1912:10 pm
EDI
- SEA
1 stop16h 16m
JetBlue
Thu 6/411:35 am
SEA
- EDI
1 stop14h 25m
JetBlue
Deal found 4/20![JetBlue logo]()
$932
This SWISS deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Mon 9/149:25 am
LGW
- SEA
2 stops19h 18m
SWISS
Mon 9/217:00 am
SEA
- LGW
2 stops17h 25m
SWISS
Deal found 4/22![SWISS logo]()
$939
This Mytrip deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:00 am
GLA
- SEA
2 stops30h 40m
WestJet
Sat 6/137:35 pm
SEA
- GLA
2 stops30h 05m
WestJet
Deal found 4/21![WestJet logo]()
$976
This Turkish Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:45 pm
STN
- SEA
1 stop31h 30m
Turkish Airlines
Mon 8/312:35 pm
SEA
- STN
1 stop20h 05m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$1,064
This Icelandair deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/303:40 pm
LGW
- SEA
1 stop28h 05m
Icelandair
Thu 6/1111:25 pm
SEA
- LGW
1 stop31h 15m
Icelandair
Deal found 4/20![Icelandair logo]()
$767
This Scandinavian Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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.
Fri 5/227:10 pm
EDI
- SEA
1 stop26h 35m
Scandinavian Airlines
Sat 6/63:55 pm
SEA
- EDI
1 stop18h 30m
Scandinavian Airlines
Deal found 4/20![Scandinavian Airlines logo]()
$804
This KLM deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Sun 8/3011:45 am
LHR
- SEA
1 stop12h 42m
KLM
Tue 9/86:20 pm
SEA
- LHR
Nonstop9h 50m
KLM
Deal found 4/21![KLM logo]()
$807
This British Airways deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 8/139:50 am
LHR
- SEA
Nonstop9h 45m
British Airways
Thu 8/278:20 pm
SEA
- LHR
Nonstop9h 25m
British Airways
Deal found 4/19![British Airways logo]()
$810
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2310:25 am
LGW
- SEA
1 stop15h 14m
Delta
Tue 5/266:40 pm
SEA
- LGW
1 stop13h 20m
Delta
Deal found 4/23![Delta logo]()
$837
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:40 am
LTN
- SEA
3 stops33h 25m
Multiple Airlines
Sun 8/27:00 pm
SEA
- LTN
2 stops19h 20m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$840
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:20 am
SOU
- SEA
1 stop15h 50m
Aer Lingus
Thu 6/117:10 pm
SEA
- SOU
1 stop16h 20m
Aer Lingus
Deal found 4/20![Aer Lingus logo]()
$855
This Virgin Atlantic deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 9/145:00 pm
LGW
- SEA
2 stops25h 24m
Virgin Atlantic
Mon 9/216:45 pm
SEA
- LGW
1 stop13h 15m
Virgin Atlantic
Deal found 4/22![Virgin Atlantic logo]()
$860
This Scandinavian Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:50 pm
EDI
- SEA
2 stops26h 55m
Scandinavian Airlines
Sun 6/73:55 pm
SEA
- EDI
1 stop18h 30m
Scandinavian Airlines
Deal found 4/20![Scandinavian Airlines logo]()
$812
This Icelandair deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/121:00 pm
LGW
- SEA
1 stop12h 55m
Icelandair
Mon 5/253:40 pm
SEA
- LGW
1 stop12h 05m
Icelandair
Deal found 4/20![Icelandair logo]()
$817
This KLM deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 6/29:20 am
LCY
- SEA
1 stop15h 04m
KLM
Wed 7/11:45 pm
SEA
- LCY
1 stop11h 45m
KLM
Deal found 4/21![KLM logo]()
$821
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:35 pm
LHR
- SEA
1 stop25h 40m
Delta
Sat 6/1310:05 pm
SEA
- LHR
Nonstop9h 30m
Delta
Deal found 4/20![Delta logo]()
$851
This Mytrip deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:35 pm
GLA
- SEA
3 stops43h 05m
Multiple Airlines
Wed 6/105:45 am
SEA
- GLA
3 stops19h 55m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$852
This Virgin Atlantic deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:25 am
LGW
- SEA
2 stops21h 34m
Virgin Atlantic
Fri 6/191:30 pm
SEA
- LGW
1 stop11h 55m
Virgin Atlantic
Deal found 4/19![Virgin Atlantic logo]()
$881
This Scandinavian Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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.
Fri 5/227:40 pm
EDI
- SEA
2 stops26h 05m
Scandinavian Airlines
Fri 6/53:55 pm
SEA
- EDI
1 stop18h 30m
Scandinavian Airlines
Deal found 4/20![Scandinavian Airlines logo]()
$812
This Expedia deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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.
Wed 6/39:20 am
SOU
- SEA
1 stop15h 50m
Aer Lingus
Wed 6/107:10 pm
SEA
- SOU
1 stop13h 40m
Aer Lingus
Deal found 4/19![Aer Lingus logo]()
$904
This Icelandair deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/32:15 pm
EDI
- SEA
1 stop14h 25m
Icelandair
Sun 6/77:00 pm
SEA
- EDI
1 stop10h 20m
Icelandair
Deal found 4/23![Icelandair logo]()
$823
Last-minute flights from United Kingdom to SeattleDiscover last-minute flight deals from United Kingdom to Seattle. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from United Kingdom to Seattle. Data last updated April 24, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 4/293:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Mon 5/117:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Deal found 4/22![Icelandair logo]()
$709
This Gotogate deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/153:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Sun 8/23:40 pm
SEA
- LGW
1 stop15h 00m
Icelandair
Deal found 4/20![Icelandair logo]()
$705
This Mytrip deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:00 am
MAN
- SEA
2 stops22h 40m
Multiple Airlines
Thu 5/283:40 pm
SEA
- MAN
2 stops22h 55m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$671
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:30 am
STN
- SEA
3 stops35h 10m
Multiple Airlines
Tue 9/87:00 pm
SEA
- STN
2 stops17h 35m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$704
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:30 am
STN
- SEA
3 stops35h 10m
Multiple Airlines
Mon 9/73:40 pm
SEA
- STN
2 stops22h 45m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$705
This Mytrip deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:30 am
STN
- SEA
3 stops35h 10m
Multiple Airlines
Fri 9/183:40 pm
SEA
- STN
3 stops20h 45m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$706
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:30 am
STN
- SEA
3 stops35h 10m
Multiple Airlines
Fri 9/253:40 pm
SEA
- STN
2 stops20h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$707
This Mytrip deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:30 am
STN
- SEA
3 stops35h 10m
Multiple Airlines
Tue 9/153:40 pm
SEA
- STN
2 stops20h 55m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$710
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/266:40 am
LHR
- SEA
1 stop15h 05m
Scandinavian Airlines
Sun 5/313:55 pm
SEA
- LHR
1 stop16h 05m
Scandinavian Airlines
Deal found 4/21![Scandinavian Airlines logo]()
$708
This Icelandair deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/273:40 pm
LGW
- SEA
1 stop28h 05m
Icelandair
Sun 6/77:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Deal found 4/22![Icelandair logo]()
$706
This Icelandair deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/273:40 pm
LGW
- SEA
1 stop28h 05m
Icelandair
Thu 6/1111:25 pm
SEA
- LGW
1 stop31h 15m
Icelandair
Deal found 4/22![Icelandair logo]()
$707
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/287:30 pm
LHR
- SEA
1 stop26h 15m
Scandinavian Airlines
Sun 5/313:55 pm
SEA
- LHR
1 stop16h 05m
Scandinavian Airlines
Deal found 4/21![Scandinavian Airlines logo]()
$707
One-way flights from United Kingdom to SeattleSearch for one-way flight options from United Kingdom to Seattle. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
Search for one-way flight options from United Kingdom to Seattle. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/128:20 am
GLA
- SEA
2 stops33h 20m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 6/38:05 pm
EDI
- SEA
3 stops54h 40m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 6/178:05 pm
EDI
- SEA
3 stops32h 55m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/119:45 pm
GLA
- SEA
2 stops43h 55m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:20 pm
GLA
- SEA
3 stops59h 25m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:20 pm
MAN
- SEA
3 stops49h 20m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/259:45 pm
GLA
- SEA
3 stops43h 55m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:55 pm
EDI
- SEA
3 stops41h 45m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/266:15 am
EDI
- SEA
3 stops35h 25m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 6/110:35 pm
MAN
- SEA
3 stops43h 05m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1211:55 pm
EDI
- SEA
3 stops41h 45m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 6/610:00 pm
EDI
- SEA
3 stops43h 40m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$427
Find flight deals from United Kingdom to Seattle
Keep the following information in mind while searching for United Kingdom to Seattle flight deals. Data was last updated April 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $671 (Mytrip) |
One-way from | $394 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $728 |
Good round-trip deal | $869 or less |
Good one-way deal | $694 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from United Kingdom to Seattle 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 April 24, 2026.
Use the filters below to find and compare flights from the United Kingdom to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Fri 5/29
3:40 pm-8:40 pm
1 stop13h 00m
Seattle/Tacoma Intl
Thu 6/11
11:25 pm-2:40 pm
1 stop31h 15m
$765
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Wed 6/10
4:30 pm-6:25 pm
Nonstop9h 55m
Seattle/Tacoma Intl
Mon 6/15
6:00 am-9:05 am
1 stop19h 05m
$765
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Sat 5/30
3:40 pm-11:45 am
1 stop28h 05m
Seattle/Tacoma Intl
Thu 6/11
11:25 pm-2:40 pm
1 stop31h 15m
$767
EdinburghSeattle
EDI - SEA
EDISEA
Edinburgh Turnhouse
Thu 10/8
7:10 pm-1:45 pm
1 stop26h 35m
Seattle/Tacoma Intl
Sun 10/11
3:55 pm-4:15 pm
2 stops16h 20m
$790
Quickest round-trip
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Sun 6/7
5:00 pm-6:50 pm
Nonstop9h 50m
Seattle/Tacoma Intl
Thu 7/2
9:45 pm-3:05 pm
Nonstop9h 20m
$800
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Wed 10/7
11:45 am-4:39 pm
1 stop12h 54m
Seattle/Tacoma Intl
Sun 10/11
6:20 pm-12:10 pm
Nonstop9h 50m
$800
LondonSeattle
STN - SEA
STNSEA
London Stansted
Fri 5/22
11:30 am-1:45 pm
3 stops34h 15m
Seattle/Tacoma Intl
Fri 5/29
3:55 pm-11:20 pm
3 stops23h 25m
$802
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Sun 6/7
11:40 am-2:00 pm
Nonstop10h 20m
Seattle/Tacoma Intl
Sun 6/14
6:20 pm-12:10 pm
Nonstop9h 50m
$804
EdinburghSeattle
EDI - SEA
EDISEA
Edinburgh Turnhouse
Fri 5/22
7:10 pm-1:45 pm
1 stop26h 35m
Seattle/Tacoma Intl
Sat 6/6
3:55 pm-6:25 pm
1 stop18h 30m
$804
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Sun 8/30
11:45 am-4:27 pm
1 stop12h 42m
Seattle/Tacoma Intl
Tue 9/8
6:20 pm-12:10 pm
Nonstop9h 50m
$807
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from United Kingdom to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from United Kingdom with our price prediction graph.
GLA-SEA
LGW-SEA
LCY-SEA
BRS-SEA
EDI-SEA
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 Seattle
GB0-SEA
GLA-SEA
LGW-SEA
LCY-SEA
BRS-SEA
How far ahead should I book a flight from United Kingdom to Seattle?
Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from United Kingdom to Seattle?
Currently, February is the cheapest month in which you can book a flight from United Kingdom to Seattle (average of $390). Flying from United Kingdom to Seattle in December is currently the most expensive (average of $1,218). 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 SEA?
Find hourly flight availability from United Kingdom to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2026.
When flying from United Kingdom to Seattle, 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 Seattle
Explore weekly flight availability from United Kingdom to Seattle. 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 April 24, 2026.
The most flights from GB0 to SEA are scheduled on a Monday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (16 on average).
How often are flights from the United Kingdom to Seattle delayed?
About 11% of weekly flights between United Kingdom and Seattle have experienced delays in the past year, with the average delay time being 128 minutes.
What is the most punctual flight time for the United Kingdom to Seattle flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on the United Kingdom to Seattle flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 5% of flights being delayed.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated April 24, 2026.
See what other customers who have flown with Delta,Virgin Atlantic, andAmerican Airlines from the United Kingdom to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
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 United Kingdom to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Kent
Tumwater
Tukwila
Puyallup
Renton
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
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 United Kingdom to Seattle
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Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from United Kingdom to Seattle by cabin class
Find flights from United Kingdom to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
United Kingdom and Seattle flights
Browse other United Kingdom and Seattle flight options. Last updated on April 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 24, 2026.
United Kingdom to Seattle flights
Consider these flights traveling from United Kingdom to Seattle.
Top 6 airlines flying from United Kingdom to Seattle
Discover the top 6 airlines that operate flights from United Kingdom to Seattle. 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 April 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$403 | Average$677 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$574 | Average$853 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$594 | Average$1,009 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$618 | Average$985 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$660 | Average$922 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$780 | Average$780 | FlexibilityNo cancel fee | On-time77% |