Cheap flights from Seattle (SEA) to Heathrow (LHR)

Flight FAQs

From Seattle to Heathrow

Are flight prices decreasing from Seattle to Heathrow due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and Heathrow for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Seattle to Heathrow for under $400 on Cheapflights?

Yes, there are multiple flights from Seattle to Heathrow for under $400. The cheapest flight booked recently is on Icelandair for just $361, but on average you can expect to pay $366.

Are there nonstop flights from Seattle to Heathrow for under $400 on Cheapflights?

Cheapflights has 3 direct flights from Seattle to Heathrow under $400. A good price for a nonstop flight from Seattle to Heathrow is less than $392.

Are there last-minute flights available from Seattle to Heathrow for under $400?

There are currently just 3 open flights from Seattle to Heathrow within the next 7 days for less than $400.

What days are nonstop flights available from Seattle to Heathrow?

You can find nonstop flights on the following days: Tuesday, Thursday, Saturday.

What percent of flights are delayed?

Airlines departing from Seattle to Heathrow can be delayed by up to 91min. or more hours.

What is the cheapest airline for this route?

When searching, try setting your filters to view flights for British Airways, as currently they have the cheapest options available from Seattle to Heathrow. On average you can find 29 flights for this flight path daily.

How long does the flight from Seattle to Heathrow take?

A nonstop flight takes up to 10 hours, covering a distance of 2,990 miles.

How many flights depart from Seattle to Heathrow on average per day?

28 flight departures from Seattle to London Heathrow per day on average.
Afternoon (Noon - 6pm) - 54% of flight departures
Evening (6pm - Midnight) - 46% of flight departures

Is Seattle weather warmer or cooler than Heathrow?

We forecast the temperature to be around the 77 °F's in July, on average. The temperature in Heathrow is generally colder than in Seattle. Book flights in a timely manner in correlation to your departure date.