Cheap flights from England to Seattle from £302

The cheapest month to fly to Seattle from England is in February. Flight prices, which tend to average around £291, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seattle, with average flight prices from England averaging around £297.

According to our data, Thursday is the cheapest day to fly to Seattle from England. The lowest ticket price found for a Thursday departure recently was £603. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Sunday is £678.

According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from England to Seattle at midday for as low as £604. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive, with an average ticket price of £642.

Fly from London Heathrow to Seattle/Tacoma Intl for the best England - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from England when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around £584 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from England for as low as £524 on momondo.

There are 4 cabin classes available to choose from on England to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, Icelandair, and Alaska Airlines are the most popular carriers operating from England to Seattle/Tacoma Intl

Virgin Atlantic, British Airways and Icelandair are the top three most popular airlines that fly to Seattle from England according to our data. Virgin Atlantic is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 14 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

The number of flights available between England and Seattle is 18 per day as of May 2026. The most frequent departure time is 09:00, with 50% of daily flights leaving in the afternoon.

As of May 2026, 130 flights take off from England and land in Seattle each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.