Flights from Seattle to London from $ 853*
expand_more
1 Passenger, Economy
expand_morePromotion Code
expand_moreexpand_more
today
today
Featured daily fares for flights from Seattle (SEA) to London (LHR)
expand_more
location_on
location_on
More United deals on Seattle (SEA) to London (LHR) flights
flight_takeoff
flight_land
$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Seattle (SEA) | London (LHR) | Roundtrip | Economy | 08/04/26 - 08/27/26 | from $ 854 Viewed: 4 hours ago |
| Seattle (SEA) | London (LHR) | Roundtrip | Economy | 11/09/26 - 11/17/26 | from $ 878 Viewed: 48 minutes ago |
| Seattle (SEA) | London (LHR) | Roundtrip | Economy | 09/02/26 - 09/22/26 | from $ 882 Viewed: 1 hour ago |
| Seattle (SEA) | London (LHR) | Roundtrip | Economy | 05/12/26 - 05/19/26 | from $ 886 Viewed: 11 hours ago |
| Seattle (SEA) | London (LHR) | Roundtrip | Economy | 05/06/26 - 05/13/26 | from $ 886 Viewed: 11 hours ago |
| Seattle (SEA) | London (LHR) | Roundtrip | Economy | 05/06/26 - 05/20/26 | from $ 888 Viewed: 11 hours ago |
| Seattle (SEA) | London (LHR) | Roundtrip | Economy | 05/05/26 - 05/12/26 | from $ 890 Viewed: 11 hours ago |
| Seattle (SEA) | London (LHR) | Roundtrip | Economy | 05/05/26 - 05/19/26 | from $ 890 Viewed: 11 hours ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
