$237+ Cheap flights from Seattle (SEA) to the United Kingdom
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LHR
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to United Kingdom with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 September 10, 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 September 10, 2026.
This Mytrip deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 12/37:45 am -
2 stops31h 15m
Tue 12/86:35 pm -
2 stops26h 25m
Deal found 9/5![Multiple Airlines logo]()
$597
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Sat 11/72:35 pm -
1 stop14h 55m
Sat 11/147:15 am -
1 stop17h 45m
Deal found 9/10![Multiple Airlines logo]()
$613
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:35 pm -
1 stop15h 00m
Sun 11/86:00 am -
1 stop19h 00m
Deal found 9/8![Multiple Airlines logo]()
$627
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:35 pm -
1 stop15h 15m
Tue 11/177:00 am -
1 stop18h 00m
Deal found 9/8![Multiple Airlines logo]()
$638
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Wed 10/147:10 pm -
1 stop13h 35m
Wed 10/217:55 am -
1 stop17h 15m
Deal found 9/8![Multiple Airlines logo]()
$658
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/62:35 pm -
1 stop14h 25m
Tue 11/1711:20 am -
1 stop13h 40m
Deal found 9/9![Multiple Airlines logo]()
$669
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/302:35 pm -
1 stop11h 20m
Thu 12/1011:55 am -
1 stop13h 05m
Deal found 9/9![Icelandair logo]()
$679
This Booking.com deal was found by Cheapflights users on 9/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:10 am -
2 stops25h 35m
Wed 10/1412:05 pm -
1 stop13h 05m
Deal found 9/9![Multiple Airlines logo]()
$679
This oojo deal was found by Cheapflights users on 9/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:40 pm -
1 stop13h 45m
Fri 10/3011:35 am -
1 stop13h 25m
Deal found 9/8![Icelandair logo]()
$684
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:10 pm -
1 stop18h 55m
Wed 10/147:20 am -
1 stop17h 50m
Deal found 9/9![Multiple Airlines logo]()
$685
This Mytrip deal was found by Cheapflights users on 9/7. 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 10/227:00 pm -
2 stops17h 30m
Thu 10/291:35 pm -
2 stops35h 25m
Deal found 9/7![Multiple Airlines logo]()
$686
This Cheapflightsfares deal was found by Cheapflights users on 9/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/103:40 pm -
1 stop13h 45m
Fri 10/162:20 pm -
1 stop11h 35m
Deal found 9/7![Icelandair logo]()
$689
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 September 10, 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 September 10, 2026.
This Icelandair deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/72:35 pm -
1 stop11h 20m
Fri 12/1111:35 am -
1 stop13h 25m
Deal found 9/9![Icelandair logo]()
$715
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:45 pm -
1 stop16h 40m
Mon 11/168:20 pm -
1 stop23h 05m
Deal found 9/9![British Airways logo]()
$743
This KLM deal was found by Cheapflights users on 9/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:35 pm -
1 stop14h 10m
Sun 11/153:25 pm -
1 stop28h 22m
Deal found 9/9![KLM logo]()
$748
This Virgin Atlantic deal was found by Cheapflights users on 9/9. 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.
Sun 11/86:00 am -
2 stops22h 45m
Sun 11/153:25 pm -
1 stop28h 22m
Deal found 9/9![Virgin Atlantic logo]()
$752
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:43 am -
2 stops18h 07m
Tue 11/176:45 am -
2 stops21h 35m
Deal found 9/9![American Airlines logo]()
$760
This Finnair deal was found by Cheapflights users on 9/9. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:27 am -
2 stops18h 23m
Mon 11/168:20 pm -
2 stops31h 37m
Deal found 9/9![Multiple Airlines logo]()
$765
This Delta deal was found by Cheapflights users on 9/9. 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 11/34:05 pm -
1 stop15h 40m
Sun 11/810:00 am -
1 stop13h 14m
Deal found 9/9![Delta logo]()
$793
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:15 pm -
1 stop12h 35m
Sat 11/1411:05 am -
2 stops41h 51m
Deal found 9/9![United Airlines logo]()
$800
This Scandinavian Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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.
Mon 12/1411:00 am -
2 stops22h 40m
Thu 12/247:30 pm -
2 stops34h 12m
Deal found 9/5![Scandinavian Airlines logo]()
$845
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/316:50 pm -
Nonstop9h 30m
Thu 2/42:45 pm -
Nonstop9h 55m
Deal found 9/6![Alaska Airlines logo]()
$864
This Turkish Airlines deal was found by Cheapflights users on 9/8. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:05 pm -
1 stop30h 50m
Wed 11/1810:55 am -
1 stop38h 15m
Deal found 9/8![Turkish Airlines logo]()
$880
This SWISS deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 10/127:00 am -
2 stops17h 40m
Tue 10/277:05 pm -
2 stops35h 13m
Deal found 9/5![SWISS logo]()
$1,041
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Sun 1/32:35 pm -
1 stop16h 30m
Sun 1/106:00 am -
1 stop19h 00m
Deal found 9/8![Multiple Airlines logo]()
$773
This Delta deal was found by Cheapflights users on 9/10. 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.
Mon 10/196:00 am -
2 stops18h 15m
Wed 10/285:50 am -
2 stops23h 59m
Deal found 9/10![Delta logo]()
$805
This Virgin Atlantic deal was found by Cheapflights users on 9/9. 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.
Wed 2/2411:25 am -
2 stops20h 20m
Sun 3/710:00 am -
2 stops20h 20m
Deal found 9/9![Virgin Atlantic logo]()
$817
This British Airways deal was found by Cheapflights users on 9/9. 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.
Tue 1/196:00 am -
2 stops21h 20m
Sun 1/249:40 am -
1 stop15h 10m
Deal found 9/9![British Airways logo]()
$817
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 1/112:30 pm -
2 stops58h 30m
Fri 1/156:10 am -
2 stops38h 49m
Deal found 9/5![United Airlines logo]()
$833
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:39 am -
2 stops21h 21m
Thu 12/107:30 pm -
2 stops32h 54m
Deal found 9/9![Scandinavian Airlines logo]()
$845
This Mytrip deal was found by Cheapflights users on 9/7. 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.
Sun 10/257:10 pm -
2 stops19h 20m
Sat 10/316:00 am -
2 stops19h 00m
Deal found 9/7![Multiple Airlines logo]()
$793
This Turkish Airlines deal was found by Cheapflights users on 9/8. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:05 pm -
1 stop19h 30m
Wed 11/1810:05 am -
1 stop39h 05m
Deal found 9/8![Turkish Airlines logo]()
$888
This Delta deal was found by Cheapflights users on 9/9. 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.
Wed 10/77:15 am -
2 stops18h 55m
Wed 10/1411:00 am -
2 stops19h 05m
Deal found 9/9![Delta logo]()
$832
This British Airways deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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.
Mon 12/76:45 pm -
1 stop30h 45m
Fri 12/118:25 pm -
1 stop23h 00m
Deal found 9/5![British Airways logo]()
$837
This Virgin Atlantic deal was found by Cheapflights users on 9/9. 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.
Wed 2/246:00 am -
2 stops17h 15m
Sun 3/71:45 pm -
1 stop29h 50m
Deal found 9/9![Virgin Atlantic logo]()
$839
This Booking.com deal was found by Cheapflights users on 9/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:40 pm -
2 stops17h 45m
Tue 10/69:40 am -
2 stops16h 15m
Deal found 9/9![Multiple Airlines logo]()
$797
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:56 pm -
2 stops48h 59m
Tue 11/179:25 am -
2 stops36h 00m
Deal found 9/9![United Airlines logo]()
$893
This Scandinavian Airlines deal was found by Cheapflights users on 9/8. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:30 pm -
2 stops20h 00m
Tue 11/107:30 pm -
2 stops32h 43m
Deal found 9/8![Scandinavian Airlines logo]()
$905
This Turkish Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:05 pm -
1 stop36h 15m
Mon 11/910:55 am -
1 stop38h 15m
Deal found 9/9![Turkish Airlines logo]()
$920
This British Airways deal was found by Cheapflights users on 9/10. 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.
Sat 10/241:30 pm -
1 stop12h 50m
Sun 11/18:10 pm -
1 stop28h 40m
Deal found 9/10![British Airways logo]()
$846
This Virgin Atlantic deal was found by Cheapflights users on 9/9. 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.
Thu 12/310:25 am -
2 stops21h 20m
Sun 12/1310:00 am -
2 stops20h 09m
Deal found 9/9![Virgin Atlantic logo]()
$858
This Mytrip deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 10/303:35 pm -
2 stops23h 05m
Sun 11/87:00 am -
3 stops22h 57m
Deal found 9/5![Multiple Airlines logo]()
$799
Last-minute flights from Seattle to United KingdomDiscover last-minute flight deals from Seattle to United Kingdom. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to United Kingdom. Data last updated September 10, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 9/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:00 pm -
1 stop10h 25m
Tue 10/132:20 pm -
1 stop11h 35m
Deal found 9/6![Icelandair logo]()
$713
This Cheapflightsfares deal was found by Cheapflights users on 9/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 pm -
1 stop10h 25m
Wed 10/142:20 pm -
1 stop11h 35m
Deal found 9/6![Icelandair logo]()
$699
This Booking.com deal was found by Cheapflights users on 9/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:10 am -
2 stops25h 35m
Wed 10/1412:05 pm -
1 stop13h 05m
Deal found 9/9![Multiple Airlines logo]()
$679
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:10 pm -
1 stop18h 55m
Wed 10/147:20 am -
1 stop17h 50m
Deal found 9/9![Multiple Airlines logo]()
$685
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:00 pm -
1 stop10h 25m
Fri 10/162:20 pm -
1 stop11h 35m
Deal found 9/6![Icelandair logo]()
$733
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:00 pm -
1 stop10h 25m
Thu 10/152:20 pm -
1 stop11h 35m
Deal found 9/6![Icelandair logo]()
$723
This Cheapflightsfares deal was found by Cheapflights users on 9/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/103:40 pm -
1 stop13h 45m
Fri 10/162:20 pm -
1 stop11h 35m
Deal found 9/7![Icelandair logo]()
$689
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Wed 10/147:10 pm -
1 stop13h 35m
Wed 10/217:55 am -
1 stop17h 15m
Deal found 9/8![Multiple Airlines logo]()
$658
This Mytrip deal was found by Cheapflights users on 9/7. 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 10/227:00 pm -
2 stops17h 30m
Thu 10/291:35 pm -
2 stops35h 25m
Deal found 9/7![Multiple Airlines logo]()
$686
This oojo deal was found by Cheapflights users on 9/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:40 pm -
1 stop13h 45m
Fri 10/3011:35 am -
1 stop13h 25m
Deal found 9/8![Icelandair logo]()
$684
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:00 pm -
1 stop12h 10m
Thu 11/56:15 am -
1 stop18h 45m
Deal found 9/8![Multiple Airlines logo]()
$713
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:40 pm -
1 stop15h 30m
Fri 10/306:15 am -
1 stop18h 45m
Deal found 9/8![Multiple Airlines logo]()
$715
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 September 10, 2026.
Search for one-way flight options from Seattle to United Kingdom. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/63:55 pm -
1 stop15h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/63:55 pm -
1 stop21h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 10/57:00 pm -
2 stops21h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$258
This FlightHub deal was found by Cheapflights users on 9/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/222:35 pm -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Icelandair logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
3 stops28h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$282
This oojo deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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.
Sat 10/33:40 pm -
1 stop13h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Icelandair logo]()
$294
This oojo deal was found by Cheapflights users on 9/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/232:35 pm -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Icelandair logo]()
$294
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:40 pm -
1 stop13h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 11/182:35 pm -
2 stops32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 9/203:55 pm -
2 stops46h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$307
This Flightnetwork deal was found by Cheapflights users on 9/8. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:40 pm -
1 stop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Icelandair logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/137:00 pm -
3 stops29h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$310
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $597 (Mytrip) |
One-way from | $237 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $908 |
Good round-trip deal | $953 or less |
Good one-way deal | $436 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 7,457,451 searches. Data last updated September 10, 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
SeattleManchester
SEA Seattle/Tacoma Intl - MAN Manchester
SEAMAN
Seattle/Tacoma Intl
Tue 10/6
3:55 pm-9:00 pm
1 stop21h 05m
Manchester
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$252
SeattleGlasgow
SEA Seattle/Tacoma Intl - GLA Glasgow Intl
SEAGLA
Seattle/Tacoma Intl
Sat 10/3
3:40 pm-1:25 pm
1 stop13h 45m
Glasgow Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$294
SeattleGlasgow
SEA Seattle/Tacoma Intl - GLA Glasgow Intl
SEAGLA
Seattle/Tacoma Intl
Mon 9/28
3:40 pm-1:25 pm
1 stop13h 45m
Glasgow Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$296
SeattleManchester
SEA Seattle/Tacoma Intl - MAN Manchester
SEAMAN
Seattle/Tacoma Intl
Tue 10/20
7:00 pm-11:40 am
1 stop32h 40m
Manchester
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$314
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Sun 1/3
2:35 pm-10:55 am
1 stop12h 20m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$324
SeattleLondon
SEA Seattle/Tacoma Intl - LHR London Heathrow
SEALHR
Seattle/Tacoma Intl
Wed 12/9
4:50 pm-10:40 am
Nonstop9h 50m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$325
SeattleLondon
SEA Seattle/Tacoma Intl - LHR London Heathrow
SEALHR
Seattle/Tacoma Intl
Wed 3/3
6:50 pm-12:20 pm
Nonstop9h 30m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$325
SeattleLondon
SEA Seattle/Tacoma Intl - LHR London Heathrow
SEALHR
Seattle/Tacoma Intl
Mon 12/28
11:15 pm-6:20 am
1 stop23h 05m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$329
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Tue 12/8
4:05 pm-3:45 pm
1 stop15h 40m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$330
SeattleManchester
SEA Seattle/Tacoma Intl - MAN Manchester
SEAMAN
Seattle/Tacoma Intl
Mon 1/18
2:37 pm-4:30 pm
2 stops17h 53m
Manchester
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$331
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-MAN
SEA-EDI
SEA-NCL
SEA-GLA
SEA-INV
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-MAN
SEA-EDI
SEA-NCL
SEA-GLA
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 $652). Flying from Seattle to United Kingdom in June is currently the most expensive (average of $1,220). 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 September 10, 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 September 10, 2026.
The most flights from SEA to GB0 are scheduled on a Tuesday (25 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (24 on average).
How often are flights from Seattle to the United Kingdom delayed?
About 14% of weekly flights between Seattle and United Kingdom have experienced delays in the past year, with the average delay time being 139 minutes.
What is the most punctual flight time for Seattle to the United Kingdom flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Thursday 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 5% of flights being delayed.
How far ahead should I book a flight from Seattle to United Kingdom?
The price you pay for your flight from Seattle to United Kingdom may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 September 10, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andVirgin Atlantic 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.
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
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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Alternative routes for Seattle to United Kingdom
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Complete your trip
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Search flights from Seattle to United Kingdom by cabin class
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Seattle and United Kingdom flights
Browse other Seattle and United Kingdom flight options. Last updated on September 10, 2026.
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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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$480 | Average$1,051 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$488 | Average$787 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$542 | Average$694 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$549 | Average$788 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$559 | Average$954 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$564 | Average$919 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$569 | Average$910 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$569 | Average$833 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$580 | Average$799 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$621 | Average$1,103 | FlexibilityNo cancel fee | On-timeN/A |