London Heathrow (LHR) to Seattle / Tacoma (SEA) flight deal in economy from $688
LHRLondon Heathrow Airport
London Heathrow, United Kingdom
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$873 USD
-21%$688 USD
Verified 2 days agoDecember 2026
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Limited Availability
19% of dates checked are available within 10% of the lowest price
Wednesday, December 23rd, 2026
10 round-trip options
Returning
Mon, Dec 28, 2026•5 Day Trip
$778 USD
Returning
Tue, Dec 29, 2026•6 Day Trip
$778 USD
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Wed, Dec 30, 2026•7 Day Trip
$780 USD
Returning
Thu, Dec 31, 2026•8 Day Trip
$790 USD
Returning
Fri, Jan 1, 2027•9 Day Trip
$809 USD
Returning
Sat, Jan 2, 2027•10 Day Trip
$814 USD
Returning
Sun, Jan 3, 2027•11 Day Trip
$814 USD
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Mon, Jan 4, 2027•12 Day Trip
$814 USD
Returning
Tue, Jan 5, 2027•13 Day Trip
$779 USD
Returning
Wed, Jan 6, 2027•14 Day Trip
$778 USD