Cheap flights from Seattle to London

Flights tailored to your budget

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Is it worth flying from Seattle to London?

It depends. Prices for flights from Seattle to London fluctuate based on several factors.

Pick a travel date to see today’s available fares.

Travel agencies and airlines sometimes offer promotional prices on certain routes — it’s worth checking regularly. Also, many travelers look for weekend flights, so booking in advance is recommended.

Best airport options between Seattle and London

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

  • Airports in Seattle: Seattle is served by 2 airports - Boeing Field, Lake Union.
  • Airports in London: London is the sole airport currently available.

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.

Customize your flight from Seattle to London

Jetcost allows you to filter by travel dates, duration, layovers, carriers, and booking providers. You’ll find direct and connecting flights, one-way or round-trip, from the best airlines and travel agencies.

Other popular destinations

Thinking about Canada? You might also consider: Calgary, Montreal, Quebec, Toronto, Vancouver.

You can sort results by price, duration, or departure time to find the best option for you. When available, results always include both low-cost and traditional airlines.
Frequently Asked Questions

Frequently asked questions about flights from Seattle to London.

How much does an airline ticket from Seattle to London cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Seattle to London.

How far is Seattle from London?

Seattle is about 3221 km from London.

What are the airports in London?

London has one airport: London.

What are the airports in Seattle?

Seattle has 2 airports: Boeing Field, Lake Union.

What are the most popular cities in Canada?

The most popular cities in Canada according to our users' searches are: Calgary, Montreal, Quebec, Toronto, Vancouver.

When should I book a flight from Seattle to London?

This information is not available at the moment.

What is the cheapest month to fly from Seattle to London?

This information is not available at the moment.

What is the most expensive month to fly from Seattle to London?

This information is not available at the moment.

What is the best day of the week to fly from Seattle to London?

This information is not available at the moment.