Looking for the price of a flight from London Heathrow to Seattle?

There’s no fixed price — fares between London and Seattle can vary a lot by day or time.

$991 is the best price recorded in the last 15 days.

It’s often useful to check whether nearby airports offer better fares. Flying during less crowded periods also increases your chances of finding good deals.

Best airport options between London and Seattle

If you're open to flying into or out of more than one airport, you’ll have more routes to compare.

• Airports in London: London is served by 6 airports - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
• Airports in Seattle: In Seattle, 2 airports are available - Boeing Field, Lake Union.

Some airports offer extras like lounges, fast track, or self check-in — good to keep in mind. Comparing airports by services offered helps you balance cost and comfort.

Choose the right flight for your trip from London Heathrow to Seattle

Jetcost helps you tailor your flight search based on what matters to you — flight length, budget, airline, or agency. Whether you prefer round-trip or one-way, direct or with stopovers, you’ll see options from eDreams, Expedia, and more.

Other popular destinations

Flying to United States? Many users also explore: Houston, Los Angeles, Miami, New York City, Orlando.

Looking for a specific airline? Select it directly in the filters to speed up your search. The search filters help you see only the options that match your needs.