$382 Cheap Lufthansa flights Seattle (SEA) to London (LHR)

View $382 flight on Sun, Sep 20, 2026Opens in a new window

$382 Cheap Lufthansa flights Seattle (SEA) to London (LHR)

Prices were available within the past 7 days and start at $382 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Seattle (SEA) to London (LHR)

October is typically the cheapest month to fly

From $477 - $843 per traveler.
Flights from Seattle (SEA) to London (LHR)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, Alaska Airlines, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
Air Canada
Distance
7657 km
Average flight time
17 hours 38 mins