Cheap flights from England to Seattle from $388

In general, February is the cheapest month to fly from England to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $637. If you don’t want to visit Seattle in February, then you should wait until January to fly from England, when ticket prices are also cheap, with an average price of $667.

On average, the least expensive day to fly to Seattle from England is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $766. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from England because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,033.

Flying to Seattle from England in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $826 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $856. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $763 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from England for as low as $713 on momondo.

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

Icelandair, WestJet, and SWISS are the most popular carriers operating from England to Seattle/Tacoma Intl

British Airways, Delta and Icelandair are the top three most popular airlines that fly to Seattle from England according to our data. British Airways is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

15 flights are operational daily from England to Seattle as of February 2026. The most popular departure time for this route is 2:00PM, with 87% of flights per day taking off in the afternoon.

The number of flights available between England and Seattle is 107 per week as of February 2026. The most frequent departure day is Tue, with 20% of weekly flights leaving on this day.