$1,717 Cheap United flights London (LHR) to Seattle (SEA)

View $1,717 flight on Tue, Jul 8, 2025Opens in a new window

$1,717 Cheap United flights London (LHR) to Seattle (SEA)

Prices were available within the past 7 days and start at $1,717 for one-way flights and $1,018 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jul 8 - Thu, Jul 31
LHR
London
SEA
Seattle
$1,018 Roundtrip, found 16 hours ago
$1,018
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Jul 8 from London to Seattle, returning Thu, Jul 31, priced at $1,018 found 16 hours ago
Flights from London (LHR) to Seattle (SEA)
Origin airport
Heathrow
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Swiss International Air Lines, United, Virgin Atlantic, WestJet
Popular airline
Delta
Distance
7657 km