London Heathrow (LHR) to Seattle / Tacoma (SEA) flight deal in economy from $688

Air FranceAFAir FranceDelta Air LinesDLDelta Air LinesKLMKLKLM
Round Trip•Economy
United KingdomLHR

London Heathrow Airport

London Heathrow, United Kingdom
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$873 USD
-21%$688 USD
Verified 2 days ago
Limited Availability
19% of dates checked are available within 10% of the lowest price

Sunday, July 12th, 2026

10 round-trip options

Returning
Fri, Jul 17, 2026•5 Day Trip
$1,581 USD
Google Flights
Returning
Sat, Jul 18, 2026•6 Day Trip
$1,079 USD
Google Flights
Returning
Sun, Jul 19, 2026•7 Day Trip
$1,079 USD
Google Flights
Returning
Mon, Jul 20, 2026•8 Day Trip
$1,079 USD
Google Flights
Returning
Tue, Jul 21, 2026•9 Day Trip
$1,042 USD
Google Flights
Returning
Wed, Jul 22, 2026•10 Day Trip
$1,042 USD
Google Flights
Returning
Thu, Jul 23, 2026•11 Day Trip
$1,042 USD
Google Flights
Returning
Fri, Jul 24, 2026•12 Day Trip
$1,042 USD
Google Flights
Returning
Sat, Jul 25, 2026•13 Day Trip
$1,079 USD
Google Flights
Returning
Sun, Jul 26, 2026•14 Day Trip
$1,079 USD
Google Flights