$414 Cheap British Airways flights Seattle (SEA) to London (LHR)

View $414 flight on Wed, May 13, 2026Opens in a new window

$414 Cheap British Airways flights Seattle (SEA) to London (LHR)

Prices were available within the past 7 days and start at $414 for one-way flights and $649 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sun, Feb 15 - Tue, Mar 3
SEA
Seattle
LHR
London
$649 Roundtrip, found 6 days ago
$649
Roundtrip
found 6 days ago
Select British Airways flight, departing Sun, Feb 15 from Seattle to London, returning Tue, Mar 3, priced at $649 found 6 days ago
British Airways
Tue, Apr 7 - Tue, Apr 21
SEA
Seattle
LHR
London
$658 Roundtrip, found 23 hours ago
$658
Roundtrip
found 23 hours ago
Select British Airways flight, departing Tue, Apr 7 from Seattle to London, returning Tue, Apr 21, priced at $658 found 23 hours ago
Flights from Seattle (SEA) to London (LHR)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
Virgin Atlantic
Distance
7657 km
Average flight time
17 hours 34 mins