$217+ Cheap flights from Seattle (SEA) to the United Kingdom
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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LHR
Apr 14 — Apr 211
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to United Kingdom with Cheapflights
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Cheapest flights from Seattle to United KingdomExplore the most affordable flight options available from Seattle to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.
Explore the most affordable flight options available from Seattle to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 pm
SEA
- GLA
1 stop10h 25m
Multiple Airlines
Tue 4/288:20 am
GLA
- SEA
2 stops33h 20m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$588
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.
Mon 4/133:40 pm
SEA
- STN
2 stops22h 45m
Multiple Airlines
Mon 4/2712:00 pm
STN
- SEA
2 stops16h 40m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$591
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.
Mon 4/203:40 pm
SEA
- LHR
2 stops21h 40m
Multiple Airlines
Tue 4/286:40 am
LHR
- SEA
2 stops19h 15m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$592
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:00 pm
SEA
- MAN
2 stops19h 50m
Multiple Airlines
Fri 4/2411:25 am
MAN
- SEA
2 stops17h 15m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$599
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.
Thu 4/307:00 pm
SEA
- STN
2 stops21h 30m
Multiple Airlines
Sun 5/106:35 am
STN
- SEA
3 stops24h 05m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$600
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/133:40 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Tue 4/281:05 pm
LHR
- SEA
1 stop15h 35m
Icelandair
Deal found 3/10![Icelandair logo]()
$600
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 10/13:40 pm
SEA
- LHR
1 stop20h 40m
Icelandair
Fri 10/99:25 pm
LHR
- SEA
1 stop31h 15m
Icelandair
Deal found 3/13![Icelandair logo]()
$601
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/203:40 pm
SEA
- LGW
2 stops18h 45m
Multiple Airlines
Tue 4/286:25 am
LGW
- SEA
2 stops19h 30m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$603
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:55 pm
SEA
- LHR
2 stops33h 00m
Scandinavian Airlines
Mon 9/216:40 am
LHR
- SEA
2 stops23h 25m
Scandinavian Airlines
Deal found 3/12![Scandinavian Airlines logo]()
$605
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/187:00 pm
SEA
- STN
2 stops21h 05m
Multiple Airlines
Sat 4/255:55 am
STN
- SEA
2 stops22h 45m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$606
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/177:00 pm
SEA
- LGW
2 stops15h 00m
Multiple Airlines
Sun 4/269:50 am
LGW
- SEA
2 stops16h 55m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$606
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.
Mon 4/137:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Tue 4/283:40 pm
LGW
- SEA
1 stop34h 15m
Icelandair
Deal found 3/12![Icelandair logo]()
$609
Best flights from Seattle to United KingdomDiscover carefully curated flight deals from Seattle to United Kingdom that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 15, 2026.
Discover carefully curated flight deals from Seattle to United Kingdom that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 15, 2026.
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/283:40 pm
SEA
- BFS
2 stops15h 35m
Multiple Airlines
Tue 5/511:30 pm
BFS
- SEA
3 stops42h 10m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$686
This Icelandair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/247:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Mon 4/273:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Deal found 3/13![Icelandair logo]()
$688
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/201:30 pm
SEA
- INV
1 stop12h 50m
British Airways
Tue 4/283:45 pm
INV
- SEA
1 stop27h 50m
British Airways
Deal found 3/12![British Airways logo]()
$722
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:40 pm
SEA
- INV
1 stop20h 50m
KLM
Tue 5/196:25 am
INV
- SEA
1 stop13h 17m
KLM
Deal found 3/10![KLM logo]()
$734
This Turkish 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:10 pm
SEA
- STN
1 stop37h 40m
Turkish Airlines
Tue 4/286:55 am
STN
- SEA
1 stop18h 20m
Turkish Airlines
Deal found 3/10![Turkish Airlines logo]()
$752
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:40 pm
SEA
- LGW
1 stop13h 20m
Delta
Fri 5/2210:25 am
LGW
- SEA
1 stop15h 14m
Delta
Deal found 3/11![Delta logo]()
$761
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.
Mon 4/135:35 pm
SEA
- LCY
1 stop16h 55m
Virgin Atlantic
Tue 4/285:50 pm
LCY
- SEA
1 stop25h 50m
Virgin Atlantic
Deal found 3/10![Virgin Atlantic logo]()
$784
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:08 pm
SEA
- MAN
3 stops38h 17m
United Airlines
Tue 4/286:05 am
MAN
- SEA
2 stops20h 55m
United Airlines
Deal found 3/12![United Airlines logo]()
$790
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:20 pm
SEA
- LHR
Nonstop9h 25m
Finnair
Tue 5/510:20 am
LHR
- SEA
1 stop13h 40m
Finnair
Deal found 3/10![Finnair logo]()
$800
This SWISS deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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.
Wed 4/227:00 am
SEA
- LGW
2 stops17h 25m
SWISS
Sat 5/29:25 am
LGW
- SEA
2 stops19h 41m
SWISS
Deal found 3/13![SWISS logo]()
$825
This Condor 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:40 pm
SEA
- LGW
1 stop13h 00m
Condor
Sun 9/1310:20 am
LGW
- SEA
1 stop13h 20m
Condor
Deal found 3/10![Condor logo]()
$865
This Mytrip deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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.
Sun 3/293:40 pm
SEA
- LTN
3 stops20h 50m
Multiple Airlines
Mon 4/209:15 am
LTN
- SEA
3 stops32h 23m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$707
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:00 pm
SEA
- LGW
1 stop32h 45m
Icelandair
Mon 9/73:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Deal found 3/10![Icelandair logo]()
$771
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:45 pm
SEA
- LHR
Nonstop9h 50m
Delta
Fri 5/2211:40 am
LHR
- SEA
Nonstop10h 20m
Delta
Deal found 3/12![Delta logo]()
$780
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:00 am
SEA
- LTN
3 stops24h 35m
Multiple Airlines
Wed 5/209:40 am
LTN
- SEA
2 stops32h 00m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$721
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:20 pm
SEA
- LHR
Nonstop9h 50m
Virgin Atlantic
Tue 5/266:15 am
LHR
- SEA
1 stop13h 00m
Virgin Atlantic
Deal found 3/11![Virgin Atlantic logo]()
$794
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:10 pm
SEA
- MAN
1 stop19h 25m
United Airlines
Tue 5/55:55 am
MAN
- SEA
1 stop14h 25m
United Airlines
Deal found 3/13![United Airlines logo]()
$799
This KLM deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:20 pm
SEA
- LHR
Nonstop9h 50m
KLM
Wed 5/206:30 am
LHR
- SEA
1 stop13h 12m
KLM
Deal found 3/14![KLM logo]()
$800
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:16 am
SEA
- GLA
2 stops17h 14m
British Airways
Wed 4/156:25 am
GLA
- SEA
1 stop13h 10m
British Airways
Deal found 3/10![British Airways logo]()
$805
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:10 pm
SEA
- STN
1 stop30h 45m
Turkish Airlines
Sun 4/195:35 pm
STN
- SEA
1 stop31h 40m
Turkish Airlines
Deal found 3/11![Turkish Airlines logo]()
$814
This SWISS deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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.
Wed 4/227:00 am
SEA
- LHR
2 stops16h 55m
SWISS
Thu 4/306:00 am
LHR
- SEA
2 stops24h 47m
SWISS
Deal found 3/13![SWISS logo]()
$826
This Condor deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:40 pm
SEA
- LGW
1 stop13h 00m
Condor
Tue 4/2810:20 am
LGW
- SEA
1 stop13h 20m
Condor
Deal found 3/13![Condor logo]()
$865
This KLM deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/136:20 pm
SEA
- LHR
Nonstop9h 50m
KLM
Mon 4/206:30 am
LHR
- SEA
1 stop13h 15m
KLM
Deal found 3/14![KLM logo]()
$800
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/257:00 pm
SEA
- LTN
2 stops14h 00m
Multiple Airlines
Sun 5/35:40 am
LTN
- SEA
3 stops25h 00m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$734
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:20 pm
SEA
- LHR
Nonstop9h 50m
Delta
Wed 6/179:55 am
LHR
- SEA
1 stop14h 29m
Delta
Deal found 3/12![Delta logo]()
$817
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:00 am
SEA
- LHR
2 stops18h 25m
United Airlines
Mon 5/46:50 am
LHR
- SEA
2 stops20h 10m
United Airlines
Deal found 3/12![United Airlines logo]()
$820
This oojo deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/68:20 pm
SEA
- INV
1 stop17h 15m
British Airways
Mon 4/1311:10 am
INV
- SEA
1 stop32h 25m
British Airways
Deal found 3/14![British Airways logo]()
$822
This Virgin Atlantic deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/165:35 pm
SEA
- LCY
1 stop15h 45m
Virgin Atlantic
Tue 4/288:15 pm
LCY
- SEA
1 stop23h 25m
Virgin Atlantic
Deal found 3/14![Virgin Atlantic logo]()
$834
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.
Mon 4/137:00 am
SEA
- LCY
2 stops21h 35m
SWISS
Tue 4/289:15 am
LCY
- SEA
2 stops21h 27m
SWISS
Deal found 3/10![SWISS logo]()
$851
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:42 am
SEA
- LGW
2 stops48h 03m
Turkish Airlines
Sun 4/192:05 pm
LGW
- SEA
1 stop35h 10m
Turkish Airlines
Deal found 3/11![Turkish Airlines logo]()
$862
Last-minute flights from Seattle to United KingdomDiscover last-minute flight deals from Seattle to United Kingdom. Data last updated March 15, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to United Kingdom. Data last updated March 15, 2026 and is based on user searches.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 pm
SEA
- GLA
1 stop10h 25m
Multiple Airlines
Tue 4/288:20 am
GLA
- SEA
2 stops33h 20m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$588
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.
Mon 4/133:40 pm
SEA
- STN
2 stops22h 45m
Multiple Airlines
Mon 4/2712:00 pm
STN
- SEA
2 stops16h 40m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$591
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/133:40 pm
SEA
- LHR
1 stop12h 15m
Icelandair
Tue 4/281:05 pm
LHR
- SEA
1 stop15h 35m
Icelandair
Deal found 3/10![Icelandair logo]()
$600
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.
Mon 4/137:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Tue 4/283:40 pm
LGW
- SEA
1 stop34h 15m
Icelandair
Deal found 3/12![Icelandair logo]()
$609
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:00 pm
SEA
- MAN
2 stops19h 50m
Multiple Airlines
Fri 4/2411:25 am
MAN
- SEA
2 stops17h 15m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$599
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/177:00 pm
SEA
- LGW
2 stops15h 00m
Multiple Airlines
Sun 4/269:50 am
LGW
- SEA
2 stops16h 55m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$606
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/187:00 pm
SEA
- STN
2 stops21h 05m
Multiple Airlines
Sat 4/255:55 am
STN
- SEA
2 stops22h 45m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$606
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.
Mon 4/203:40 pm
SEA
- LHR
2 stops21h 40m
Multiple Airlines
Tue 4/286:40 am
LHR
- SEA
2 stops19h 15m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$592
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/203:40 pm
SEA
- LGW
2 stops18h 45m
Multiple Airlines
Tue 4/286:25 am
LGW
- SEA
2 stops19h 30m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$603
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/203:40 pm
SEA
- MAN
1 stop12h 55m
Multiple Airlines
Tue 4/286:25 am
MAN
- SEA
1 stop22h 15m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$611
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/203:40 pm
SEA
- LGW
2 stops19h 35m
Multiple Airlines
Sun 5/37:40 am
LGW
- SEA
2 stops34h 00m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$612
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.
Thu 4/307:00 pm
SEA
- STN
2 stops21h 30m
Multiple Airlines
Sun 5/106:35 am
STN
- SEA
3 stops24h 05m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$600
One-way flights from Seattle to United KingdomSearch for one-way flight options from Seattle to United Kingdom. Find affordable one-way fares based on user searches. Data last updated March 15, 2026.
Search for one-way flight options from Seattle to United Kingdom. Find affordable one-way fares based on user searches. Data last updated March 15, 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.
Sun 4/197:00 pm
SEA
- EDI
2 stops33h 05m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/77:00 pm
SEA
- EDI
2 stops27h 50m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$220
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.
Sat 4/257:00 pm
SEA
- EDI
2 stops22h 00m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/67:00 pm
SEA
- MAN
2 stops20h 45m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$226
This Mytrip deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/247:00 pm
SEA
- MAN
1 stop32h 40m
Icelandair
Deal found 3/14![Icelandair logo]()
$229
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.
Wed 4/153:40 pm
SEA
- MAN
2 stops24h 05m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/247:00 pm
SEA
- MAN
2 stops19h 50m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$236
This Mytrip deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/17:00 pm
SEA
- MAN
1 stop32h 40m
Icelandair
Deal found 3/14![Icelandair logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/167:00 pm
SEA
- BFS
3 stops31h 45m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/77:15 am
SEA
- MAN
3 stops45h 25m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/77:00 pm
SEA
- GLA
3 stops39h 35m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/263:40 pm
SEA
- MAN
1 stop12h 00m
Icelandair
Deal found 3/14![Icelandair logo]()
$242
Find flight deals from Seattle to United Kingdom
Keep the following information in mind while searching for Seattle to United Kingdom flight deals. Data was last updated March 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $588 (Kiwi.com) |
One-way from | $217 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $688 |
Good round-trip deal | $728 or less |
Good one-way deal | $414 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to United Kingdom 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 March 15, 2026.
Use the filters below to find and compare flights from Seattle to the United Kingdom that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBelfast
SEA - BFS
SEABFS
Seattle/Tacoma Intl
Tue 4/28
3:40 pm-3:15 pm
2 stops15h 35m
Belfast Intl
Tue 5/5
11:30 pm-9:40 am
3 stops42h 10m
$686
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Fri 4/24
7:00 pm-2:40 pm
1 stop11h 40m
London Gatwick
Mon 4/27
3:40 pm-8:40 pm
1 stop13h 00m
$688
SeattleLondon
SEA - LTN
SEALTN
Seattle/Tacoma Intl
Sun 3/29
3:40 pm-8:30 pm
3 stops20h 50m
London Luton
Mon 4/20
9:15 am-9:38 am
3 stops32h 23m
$707
SeattleLondon
SEA - LTN
SEALTN
Seattle/Tacoma Intl
Wed 5/6
8:00 am-4:35 pm
3 stops24h 35m
London Luton
Wed 5/20
9:40 am-9:40 am
2 stops32h 00m
$721
SeattleInverness
SEA - INV
SEAINV
Seattle/Tacoma Intl
Mon 4/20
1:30 pm-10:20 am
1 stop12h 50m
Inverness
Tue 4/28
3:45 pm-11:35 am
1 stop27h 50m
$722
SeattleInverness
SEA - INV
SEAINV
Seattle/Tacoma Intl
Sun 5/10
5:40 pm-10:30 pm
1 stop20h 50m
Inverness
Tue 5/19
6:25 am-11:42 am
1 stop13h 17m
$734
SeattleLondon
SEA - LTN
SEALTN
Seattle/Tacoma Intl
Sat 4/25
7:00 pm-5:00 pm
2 stops14h 00m
London Luton
Sun 5/3
5:40 am-10:40 pm
3 stops25h 00m
$734
SeattleLondon
SEA - STN
SEASTN
Seattle/Tacoma Intl
Mon 4/13
7:10 pm-4:50 pm
1 stop37h 40m
London Stansted
Tue 4/28
6:55 am-5:15 pm
1 stop18h 20m
$752
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Mon 5/11
6:40 pm-4:00 pm
1 stop13h 20m
London Gatwick
Fri 5/22
10:25 am-5:39 pm
1 stop15h 14m
$761
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Sun 8/30
7:00 pm-11:45 am
1 stop32h 45m
London Gatwick
Mon 9/7
3:40 pm-8:40 pm
1 stop13h 00m
$771
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seattle to United Kingdom
Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Seattle with our price prediction graph.
SEA-BFS
SEA-LGW
SEA-INV
SEA-STN
SEA-LCY
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 Seattle to the United Kingdom
SEA-GB0
SEA-BFS
SEA-LGW
SEA-INV
SEA-STN
What is the cheapest month to book a flight from Seattle to United Kingdom?
Currently, January is the cheapest month in which you can book a flight from Seattle to United Kingdom (average of $443). Flying from Seattle to United Kingdom in June is currently the most expensive (average of $636). 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 SEA to GB?
Find hourly flight availability from Seattle to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 15, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to United Kingdom as you normally would.
Weekly flight availability from Seattle to United Kingdom
Explore weekly flight availability from Seattle to United Kingdom. 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 March 15, 2026.
The most flights from SEA to GB0 are scheduled on a Saturday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (12 on average).
How often are flights from Seattle to the United Kingdom delayed?
About 16% of weekly flights between Seattle and United Kingdom have experienced delays in the past year, with the average delay time being 121 minutes.
What is the most punctual flight time for Seattle to the United Kingdom flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to the United Kingdom flights?
Over the last year, Virgin Atlantic have had the lowest number of delays on this route, with just 7% of flights being delayed.
Reviews of airlines servicing United Kingdom
Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated March 15, 2026.
Read reviews from past customers who have flown Delta,Virgin Atlantic, andAer Lingus from Seattle to the United Kingdom. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Seattle to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
Complete your trip to United Kingdom by adding a car rental and/or hotel reservation to your travel itinerary.
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Seattle and United Kingdom flights
Browse other Seattle and United Kingdom flight options. Last updated on March 15, 2026.
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Seattle to United Kingdom flights
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Consider these flights traveling to United Kingdom regions.
Top 10 airlines flying from Seattle to United Kingdom
Discover the top 10 airlines that operate flights from Seattle to United Kingdom. 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 March 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$213 | Average$895 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$482 | Average$682 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$500 | Average$877 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$515 | Average$831 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$527 | Average$891 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$532 | Average$715 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$532 | Average$853 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$547 | Average$821 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$556 | Average$694 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$559 | Average$1,075 | FlexibilityNo cancel fee | On-timeN/A |