$408+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
Jul 10 — Jul 171
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 June 10, 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 June 10, 2026.
This lastminute.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:00 pm
GLA
- SEA
1 stop13h 10m
Aer Lingus
Sat 10/37:10 pm
SEA
- GLA
1 stop12h 15m
Aer Lingus
Deal found 6/7![Aer Lingus logo]()
$670
This lastminute.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1412:00 pm
GLA
- SEA
1 stop13h 10m
Aer Lingus
Tue 7/217:10 pm
SEA
- GLA
1 stop12h 15m
Aer Lingus
Deal found 6/8![Aer Lingus logo]()
$682
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Wed 6/243:00 pm
EDI
- SEA
3 stops38h 00m
Multiple Airlines
Mon 8/173:40 pm
SEA
- EDI
2 stops24h 55m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$683
This FlightHub deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Tue 3/92:35 pm
SEA
- LGW
1 stop12h 20m
Icelandair
Deal found 6/9![Icelandair logo]()
$693
This lastminute.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:50 pm
MAN
- SEA
1 stop12h 20m
Aer Lingus
Thu 7/237:10 pm
SEA
- MAN
1 stop13h 45m
Aer Lingus
Deal found 6/6![Aer Lingus logo]()
$693
This Flightcatchers deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightcatchers is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:00 am
LCY
- SEA
1 stop14h 35m
Virgin Atlantic
Sat 9/125:45 pm
SEA
- LCY
1 stop18h 30m
Virgin Atlantic
Deal found 6/9![Virgin Atlantic logo]()
$693
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:45 pm
LHR
- SEA
Nonstop10h 25m
Delta
Thu 3/44:45 pm
SEA
- LHR
Nonstop9h 45m
Delta
Deal found 6/9![Delta logo]()
$693
This Virgin Atlantic deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:25 am
LGW
- SEA
2 stops21h 32m
Virgin Atlantic
Wed 10/76:45 pm
SEA
- LGW
1 stop13h 15m
Virgin Atlantic
Deal found 6/9![Virgin Atlantic logo]()
$694
This Flightcatchers deal was found by Cheapflights users on 6/10. 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 Flightcatchers is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:00 am
LCY
- SEA
1 stop14h 35m
Virgin Atlantic
Thu 9/175:45 pm
SEA
- LCY
1 stop15h 35m
Virgin Atlantic
Deal found 6/10![Virgin Atlantic logo]()
$694
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:00 pm
LHR
- SEA
1 stop13h 10m
British Airways
Wed 9/161:30 pm
SEA
- LHR
Nonstop9h 15m
British Airways
Deal found 6/10![British Airways logo]()
$694
This Air France deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:15 am
LHR
- SEA
1 stop13h 00m
Air France
Tue 3/24:45 pm
SEA
- LHR
Nonstop9h 45m
Air France
Deal found 6/9![Air France logo]()
$695
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:00 pm
LGW
- SEA
1 stop32h 27m
Virgin Atlantic
Thu 7/301:30 pm
SEA
- LGW
1 stop11h 55m
Virgin Atlantic
Deal found 6/10![Virgin Atlantic logo]()
$696
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 June 10, 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 June 10, 2026.
This Gotogate deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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.
Wed 9/302:20 pm
GLA
- SEA
1 stop11h 35m
Icelandair
Sun 10/113:40 pm
SEA
- GLA
1 stop13h 45m
Icelandair
Deal found 6/6![Icelandair logo]()
$696
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:45 pm
LHR
- SEA
Nonstop10h 25m
Delta
Sat 3/134:45 pm
SEA
- LHR
Nonstop9h 45m
Delta
Deal found 6/9![Delta logo]()
$701
This KLM deal was found by Cheapflights users on 6/10. 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.
Fri 9/411:40 am
LHR
- SEA
Nonstop10h 20m
KLM
Mon 9/76:20 pm
SEA
- LHR
Nonstop9h 50m
KLM
Deal found 6/10![KLM logo]()
$701
This TravelUp deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:45 am
NCL
- SEA
1 stop16h 25m
British Airways
Mon 7/208:20 pm
SEA
- NCL
1 stop15h 25m
British Airways
Deal found 6/7![British Airways logo]()
$710
This Virgin Atlantic deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:45 pm
LHR
- SEA
Nonstop10h 18m
Virgin Atlantic
Tue 7/216:15 pm
SEA
- LHR
Nonstop9h 50m
Virgin Atlantic
Deal found 6/8![Virgin Atlantic logo]()
$719
This SWISS deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am
LHR
- SEA
2 stops20h 52m
SWISS
Tue 3/91:16 pm
SEA
- LHR
2 stops20h 34m
SWISS
Deal found 6/9![SWISS logo]()
$731
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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.
Fri 8/77:45 am
LHR
- SEA
1 stop19h 51m
United Airlines
Fri 8/215:00 am
SEA
- LHR
2 stops17h 45m
United Airlines
Deal found 6/6![United Airlines logo]()
$740
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:00 pm
LHR
- SEA
Nonstop9h 45m
Alaska Airlines
Thu 7/309:45 pm
SEA
- LHR
Nonstop9h 20m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$767
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Wed 7/810:00 pm
LGW
- SEA
3 stops31h 00m
Multiple Airlines
Wed 7/227:00 pm
SEA
- LGW
1 stop11h 40m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$768
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:20 am
LGW
- SEA
1 stop13h 20m
Condor
Wed 7/85:40 pm
SEA
- LGW
1 stop17h 05m
Condor
Deal found 6/10![Condor logo]()
$995
This Turkish Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/15:45 pm
STN
- SEA
1 stop31h 35m
Turkish Airlines
Wed 7/87:15 pm
SEA
- STN
1 stop18h 55m
Turkish Airlines
Deal found 6/10![Turkish Airlines logo]()
$1,259
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:40 am
LHR
- SEA
Nonstop10h 20m
Delta
Sat 3/134:45 pm
SEA
- LHR
Nonstop9h 45m
Delta
Deal found 6/9![Delta logo]()
$701
This Trip.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:55 am
GLA
- SEA
1 stop13h 05m
Icelandair
Thu 12/102:35 pm
SEA
- GLA
1 stop11h 20m
Icelandair
Deal found 6/6![Icelandair logo]()
$716
This Virgin Atlantic deal was found by Cheapflights users on 6/10. 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.
Tue 10/209:20 am
LCY
- SEA
2 stops19h 11m
Virgin Atlantic
Tue 10/276:00 am
SEA
- LCY
2 stops18h 15m
Virgin Atlantic
Deal found 6/10![Virgin Atlantic logo]()
$735
This British Airways deal was found by Cheapflights users on 6/10. 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 7/89:25 am
NCL
- SEA
1 stop15h 45m
British Airways
Mon 7/208:20 pm
SEA
- NCL
1 stop15h 25m
British Airways
Deal found 6/10![British Airways logo]()
$747
This SWISS deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 8/249:25 am
LGW
- SEA
2 stops19h 18m
SWISS
Thu 9/107:00 am
SEA
- LGW
2 stops17h 25m
SWISS
Deal found 6/6![SWISS logo]()
$761
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/142:00 pm
GLA
- SEA
2 stops37h 06m
United Airlines
Tue 7/215:00 am
SEA
- GLA
2 stops21h 10m
United Airlines
Deal found 6/8![United Airlines logo]()
$771
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:45 pm
LHR
- SEA
Nonstop10h 18m
Delta
Wed 7/87:15 am
SEA
- LHR
1 stop15h 05m
Delta
Deal found 6/10![Delta logo]()
$741
This British Airways deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:35 am
GLA
- SEA
1 stop19h 50m
British Airways
Tue 10/2011:34 am
SEA
- GLA
2 stops17h 41m
British Airways
Deal found 6/9![British Airways logo]()
$751
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Wed 7/89:20 pm
STN
- SEA
2 stops26h 40m
Multiple Airlines
Wed 7/225:40 pm
SEA
- STN
2 stops16h 50m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$830
This Icelandair deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 6/241:05 pm
MAN
- SEA
1 stop15h 35m
Icelandair
Tue 6/303:40 pm
SEA
- MAN
1 stop12h 00m
Icelandair
Deal found 6/6![Icelandair logo]()
$755
This SWISS deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:00 am
LHR
- SEA
2 stops21h 07m
SWISS
Sat 2/273:30 pm
SEA
- LHR
2 stops18h 20m
SWISS
Deal found 6/8![SWISS logo]()
$771
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/202:00 pm
GLA
- SEA
2 stops27h 36m
United Airlines
Sun 10/45:00 am
SEA
- GLA
2 stops21h 10m
United Airlines
Deal found 6/7![United Airlines logo]()
$772
This Virgin Atlantic deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:45 am
LCY
- SEA
2 stops19h 17m
Virgin Atlantic
Tue 7/287:15 am
SEA
- LCY
2 stops18h 15m
Virgin Atlantic
Deal found 6/9![Virgin Atlantic logo]()
$798
This British Airways deal was found by Cheapflights users on 6/10. 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 10/78:35 am
EDI
- SEA
1 stop16h 35m
British Airways
Sun 10/118:20 pm
SEA
- EDI
1 stop14h 25m
British Airways
Deal found 6/10![British Airways logo]()
$754
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:45 pm
LHR
- SEA
Nonstop10h 25m
Delta
Mon 9/79:50 pm
SEA
- LHR
Nonstop9h 45m
Delta
Deal found 6/8![Delta logo]()
$756
This Icelandair deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 6/211:05 pm
MAN
- SEA
1 stop30h 40m
Icelandair
Tue 6/303:40 pm
SEA
- MAN
1 stop12h 00m
Icelandair
Deal found 6/6![Icelandair logo]()
$757
This Expedia deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/89:25 am
NCL
- SEA
2 stops21h 43m
KLM
Mon 7/2010:35 am
SEA
- NCL
2 stops18h 40m
KLM
Deal found 6/6![KLM logo]()
$933
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:00 pm
GLA
- SEA
2 stops27h 36m
United Airlines
Sat 10/310:42 am
SEA
- GLA
2 stops15h 28m
United Airlines
Deal found 6/7![United Airlines logo]()
$772
This Mytrip deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:40 am
LTN
- SEA
3 stops36h 00m
Multiple Airlines
Wed 9/307:00 pm
SEA
- LTN
2 stops19h 15m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$883
Last-minute flights from United Kingdom to SeattleDiscover last-minute flight deals from United Kingdom to Seattle. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from United Kingdom to Seattle. Data last updated June 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:30 am
LHR
- SEA
1 stop17h 54m
Delta
Mon 6/2910:05 pm
SEA
- LHR
Nonstop9h 30m
Delta
Deal found 6/9![Delta logo]()
$693
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/185:45 pm
LHR
- SEA
Nonstop10h 16m
Delta
Tue 6/302:30 pm
SEA
- LHR
1 stop14h 35m
Delta
Deal found 6/10![Delta logo]()
$696
This Expedia deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:45 am
NCL
- SEA
1 stop16h 25m
Aer Lingus
Fri 7/107:10 pm
SEA
- NCL
1 stop12h 30m
Aer Lingus
Deal found 6/9![Aer Lingus logo]()
$700
This lastminute.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:50 pm
MAN
- SEA
1 stop12h 20m
Aer Lingus
Thu 7/237:10 pm
SEA
- MAN
1 stop13h 45m
Aer Lingus
Deal found 6/6![Aer Lingus logo]()
$693
This TravelUp deal was found by Cheapflights users on 6/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:45 pm
LHR
- SEA
Nonstop10h 18m
Virgin Atlantic
Sun 7/129:50 pm
SEA
- LHR
Nonstop9h 45m
Virgin Atlantic
Deal found 6/10![Virgin Atlantic logo]()
$695
This oojo deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/71:00 pm
LGW
- SEA
1 stop12h 55m
Icelandair
Tue 7/147:00 pm
SEA
- LGW
1 stop32h 45m
Icelandair
Deal found 6/9![Icelandair logo]()
$697
This oojo deal was found by Cheapflights users on 6/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:40 pm
LGW
- SEA
1 stop13h 00m
Icelandair
Wed 7/157:00 pm
SEA
- LGW
1 stop11h 40m
Icelandair
Deal found 6/10![Icelandair logo]()
$700
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:00 pm
LGW
- SEA
1 stop32h 27m
Virgin Atlantic
Thu 7/301:30 pm
SEA
- LGW
1 stop11h 55m
Virgin Atlantic
Deal found 6/10![Virgin Atlantic logo]()
$696
This Lufthansa deal was found by Cheapflights users on 6/10. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:30 am
LHR
- SEA
1 stop13h 50m
Multiple Airlines
Mon 7/277:00 am
SEA
- LHR
1 stop15h 45m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$697
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/115:45 pm
LHR
- SEA
Nonstop10h 18m
Delta
Mon 9/287:20 am
SEA
- LHR
1 stop15h 55m
Delta
Deal found 6/8![Delta logo]()
$699
This lastminute.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1412:00 pm
GLA
- SEA
1 stop13h 10m
Aer Lingus
Tue 7/217:10 pm
SEA
- GLA
1 stop12h 15m
Aer Lingus
Deal found 6/8![Aer Lingus logo]()
$682
This Trip.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:55 am
LHR
- SEA
1 stop18h 32m
Virgin Atlantic
Sun 7/266:20 pm
SEA
- LHR
Nonstop9h 50m
Virgin Atlantic
Deal found 6/9![Virgin Atlantic logo]()
$694
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 June 10, 2026.
Search for one-way flight options from United Kingdom to Seattle. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Thu 9/242:25 pm
EDI
- SEA
2 stops33h 35m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:05 pm
GLA
- SEA
3 stops58h 40m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:40 pm
GLA
- SEA
3 stops37h 20m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/239:55 pm
GLA
- SEA
3 stops44h 40m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:15 am
MAN
- SEA
3 stops44h 30m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:40 pm
EDI
- SEA
3 stops50h 20m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$452
This Trip.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1811:50 am
EDI
- SEA
1 stop29h 50m
WestJet
Deal found 6/8![WestJet logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:55 am
EDI
- SEA
3 stops38h 05m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:25 pm
GLA
- SEA
3 stops44h 15m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$460
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:45 pm
GLA
- SEA
3 stops44h 50m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$465
This Mytrip deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:40 pm
GLA
- SEA
3 stops44h 00m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:40 pm
MAN
- SEA
3 stops52h 19m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$475
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 June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $670 (lastminute.com) |
One-way from | $408 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $836 |
Good round-trip deal | $881 or less |
Good one-way deal | $663 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 June 10, 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
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
Wed 9/30
2:20 pm-5:55 pm
1 stop11h 35m
Seattle/Tacoma Intl
Sun 10/11
3:40 pm-1:25 pm
1 stop13h 45m
$696
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Mon 9/28
5:45 pm-8:10 pm
Nonstop10h 25m
Seattle/Tacoma Intl
Sat 3/13
4:45 pm-10:30 am
Nonstop9h 45m
$701
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Fri 9/4
11:40 am-2:00 pm
Nonstop10h 20m
Seattle/Tacoma Intl
Mon 9/7
6:20 pm-12:10 pm
Nonstop9h 50m
$701
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Thu 9/24
11:40 am-2:00 pm
Nonstop10h 20m
Seattle/Tacoma Intl
Sat 3/13
4:45 pm-10:30 am
Nonstop9h 45m
$701
Newcastle upon TyneSeattle
NCL - SEA
NCLSEA
Newcastle upon Tyne
Tue 7/7
8:45 am-5:10 pm
1 stop16h 25m
Seattle/Tacoma Intl
Mon 7/20
8:20 pm-7:45 pm
1 stop15h 25m
$710
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
Thu 11/19
11:55 am-5:00 pm
1 stop13h 05m
Seattle/Tacoma Intl
Thu 12/10
2:35 pm-9:55 am
1 stop11h 20m
$716
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Mon 7/6
5:45 pm-8:03 pm
Nonstop10h 18m
Seattle/Tacoma Intl
Tue 7/21
6:15 pm-12:05 pm
Nonstop9h 50m
$719
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Fri 9/25
6:00 am-6:52 pm
2 stops20h 52m
Seattle/Tacoma Intl
Tue 3/9
1:16 pm-5:50 pm
2 stops20h 34m
$731
LondonSeattle
LCY - SEA
LCYSEA
London City
Tue 10/20
9:20 am-8:31 pm
2 stops19h 11m
Seattle/Tacoma Intl
Tue 10/27
6:00 am-7:15 am
2 stops18h 15m
$735
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Fri 8/7
7:45 am-7:36 pm
1 stop19h 51m
Seattle/Tacoma Intl
Fri 8/21
5:00 am-6:45 am
2 stops17h 45m
$740
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
EDI-SEA
LGW-SEA
MAN-SEA
LCY-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
EDI-SEA
LGW-SEA
MAN-SEA
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 $1,271). 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 June 10, 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 June 10, 2026.
The most flights from GB0 to SEA are scheduled on a Wednesday (22 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 10% of weekly flights between United Kingdom and Seattle have experienced delays in the past year, with the average delay time being 118 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 Friday 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.
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.
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 June 10, 2026.
See what other customers who have flown with Delta,Air France, andVirgin Atlantic 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.
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
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
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
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
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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 June 10, 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 June 10, 2026.
United Kingdom to Seattle flights
Consider these flights traveling from United Kingdom to Seattle.
Top 7 airlines flying from United Kingdom to Seattle
Discover the top 7 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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$403 | Average$701 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$534 | Average$787 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$536 | Average$1,012 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$618 | Average$985 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$660 | Average$956 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$670 | Average$908 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$780 | Average$780 | FlexibilityNo cancel fee | On-time77% |