Beginning of main content

Cheap Flights from Seattle to London

Prices were available within the past 7 days and starts at $409 for one-way flights and $456 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Reviews from verified customers

Jan 28, 2020

Special Thanks to Euan (not sure of spelling) - he was very friendly, cheerful and helpful throughout the flight.

Jan 19, 2020

It wouldn't let me check in online, which I am very used to on other flights so it was milldly stressful

Jan 5, 2020

Bags arrived 24 hrs late.

Dec 12, 2019

Planes technology needs to be repaired on a number of seats. The flight staff were very good and provided portable entertainment devices

Dec 10, 2019

Staff made my son feel extra special on his birthday.

Dec 7, 2019

Plane was a little dated.

Dec 6, 2019

Virgin was fantastic! Great plane and service!

Dec 2, 2019

Power at seat would be nice. More than six ounces of soda at a time would also be nice.

Nov 24, 2019

Baggage delayed :(

Nov 24, 2019

Exceptional on flight staff made everything else bearable.

Seattle to London route information

Origin Airport Seattle - Tacoma Intl.
Destination Airport Heathrow
Airlines Serving Aer Lingus, Aeromexico, Air Canada, Air France, Alitalia, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Flight Price $455
Distance 4,786 mi

Cheap SEA to LHR Flights