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

Flight FAQs

From Seattle to Heathrow

How popular is this flight route?

Within the past month, 12 users have taken a look at flights from Seattle to London Heathrow.

What percent of flights are delayed?

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

How many passenger seats are available on a flight on this route?

Commercial airlines for the flight route can seat a total of 542 passengers per day from Seattle to London Heathrow.

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?

18 flight departures from Seattle to London Heathrow per day on average.
Afternoon (Noon - 6pm) - 61% of flight departures
Evening (6pm - Midnight) - 39% 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.