Flight route
Cheap flights from London to Seattle
Compare fares from London to Seattle, United States across airlines and travel partners, then book with whoever has the best price.
London to Seattle
Live fares from our airline and agency partners.
Fares
Recent fares on this route
No cached fare for this exact route yet. Search above for live pricing from London to Seattle.
FAQ
London to Seattle, answered
How much does a flight from London to Seattle cost?
We don't have a recent cached fare for this exact route yet. Search above to compare live prices from London to Seattle across our travel partners.
Is there a direct flight from London to Seattle?
Recent search data we have for this route shows connecting flights; nonstop service can vary by season and airline. Search above to see current direct and connecting options.
When is the best time to book flights from London to Seattle?
Prices on most routes fluctuate week to week. Comparing a few different date combinations in the search above is the most reliable way to find the cheapest fare for your specific trip, rather than relying on a single "best day to book" rule.