Flights from Seattle to London available from
Flights to London from Seattle
Get ready to embark on an exhilarating journey through the heart of London town, where iconic landmarks, upbeat culture, and unforgettable experiences are found around every corner. For an unrivaled in-flight experience and competitive airfares, choose Icelandair to fly from Seattle to London Heathrow (LHR) or Gatwick Airport (LGW).
FAQs about travel from Seattle to London
Helpful information for passengers traveling to London from Seattle
What is the flight duration from Seattle to London, England?
The average flight duration from Seattle to London Gatwick or Heathrow Airport is approximately 9 hours and 30 minutes non-stop, though this estimate does not include any planned stopovers.
When you book flights to London from Seattle with Icelandair, passengers have the option to extend their stay in Iceland for up to seven days.
When is the best time to fly from Seattle to London?
The optimal time to fly to London from Seattle largely depends on your personal preferences and travel needs.
While summer is characterized by long, bright days – perfect for outdoor events and sightseeing, spring (April to June) and early fall (September) tend to offer lower airfares, and the weather is still pleasant.
Which airport in London will I land at?
Passengers booking plane tickets from Seattle to London can fly into London Heathrow Airport (LHR) or Gatwick Airport (LGW).
You can use the flight finder tool above to select flights to your desired airport.
Does Icelandair offer direct flights to London from Seattle?
Passengers flying from Seattle to London with Icelandair will transfer at Keflavík International Airport. From there, you will fly directly to London Heathrow or Gatwick airport.
The flight time from KEF to LHR/LGW is around 3 hours.
How can I find cheap flights from Seattle to London?
Being flexible about which season you fly during, as well as which London airport you depart from can help you find a good deal on your tickets. Flying on a weekday may also help you secure a lower airfare, too.
We also recommend checking our flight deals page regularly and booking in advance.