Cheap flights from Seattle to London

Flights tailored to your budget

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How to get the best price from Seattle to London?

Depending on when you travel and how far in advance you book, fares between Seattle and London can differ a lot.

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

Search engines like Jetcost can highlight price changes in just seconds. For example, some users find better prices by flying on one day of the week over another — try several searches to spot the cheapest day.

Are there multiple airports in Seattle and London?

If your departure or arrival city has more than one airport, it's worth comparing all of them for timing and pricing.

  • Airports in Seattle: 2 airports are active in Seattle - Boeing Field, Lake Union.
  • Airports in London: London is the only airport currently running.

If you're traveling with a group or bulky luggage, look into parking or transport options. Alternative airports may offer faster transfers or better rates.

Plan your journey from Seattle to London with ease

Use Jetcost to tailor your search — direct or connecting flights, round-trip or one-way, filtered by airline, price, travel time, or agency.

Other popular destinations

Exploring options in Canada? These cities are trending: Calgary, Montreal, Quebec, Toronto, Vancouver.

Flight availability can change quickly — refresh the results if you’ve been away from the page for a while.
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 2001 mi 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.