London Heathrow (LHR) to Seattle / Tacoma (SEA) flight deal in economy from $713
LHRLondon Heathrow Airport
London Heathrow, United Kingdom
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$824 USD
-13%$713 USD
Verified 16 days agoDecember 2026
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Great Availability
60% of dates checked are available within 10% of the lowest price
Tuesday, December 29th, 2026
7 round-trip options
Returning
Sun, Jan 3, 2027•5 Day Trip
$1,122 USD
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Mon, Jan 4, 2027•6 Day Trip
$1,122 USD
Returning
Tue, Jan 5, 2027•7 Day Trip
$1,125 USD
Returning
Thu, Jan 7, 2027•9 Day Trip
$1,125 USD
Returning
Sun, Jan 10, 2027•12 Day Trip
$1,138 USD
Returning
Mon, Jan 11, 2027•13 Day Trip
$1,111 USD
Returning
Tue, Jan 12, 2027•14 Day Trip
$1,111 USD