Flights from Seattle to London available from
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today
today
Fly in the next three months: flights from Seattle to London
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USD
Seattle (SEA)to
London (LHR)Jul 14 2024 - Aug 08 2024
From
USD 1,043*
Round trip
/
Economy
Seattle (SEA)to
London (LHR)Jul 21 2024 - Aug 23 2024
From
USD 931*
Round trip
/
Economy
Seattle (SEA)to
London (LHR)May 30 2024 - Jun 07 2024
From
USD 969*
Round trip
/
Economy
Seattle (SEA)to
London (LHR)May 01 2024 - Jun 27 2024
From
USD 1,016*
Round trip
/
Economy
Seattle (SEA)to
London (LHR)May 13 2024 - May 24 2024
From
USD 1,026*
Round trip
/
Economy
Seattle (SEA)to
London (LHR)Jun 10 2024 - Dec 16 2024
From
USD 1,028*
Round trip
/
Economy
Seattle (SEA)to
London (LHR)Jul 20 2024 - Aug 23 2024
From
USD 1,036*
Round trip
/
Economy
Seattle (SEA)to
London (LHR)Jul 18 2024 - Aug 02 2024
From
USD 1,039*
Round trip
/
Economy
Seattle (SEA)to
London (LGW)Jun 10 2024 - Jun 24 2024
From
USD 1,179*
Round trip
/
Economy
Seattle (SEA)to
London (LGW)Jun 18 2024 - Jul 14 2024
From
USD 2,202*
Round trip
/
Economy
Seattle (SEA)to
London (LGW)Jul 14 2024 - Jul 28 2024
From
USD 1,118*
Round trip
/
Economy
*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking
Plan ahead for your trip from Seattle to London with Icelandair
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USD
| FromSeattle (SEA) | ToLondon (LHR) | Round trip / Economy | Dec 10 2024 - Jan 08 2025 | From USD 629* Seen: 10 hrs ago |
| FromSeattle (SEA) | ToLondon (LHR) | Round trip / Economy | Nov 29 2024 - Dec 04 2024 | From USD 679* Seen: 19 hrs ago |
| FromSeattle (SEA) | ToLondon (LHR) | Round trip / Economy | Dec 05 2024 - Dec 14 2024 | From USD 729* Seen: 14 hrs ago |
| FromSeattle (SEA) | ToLondon (LHR) | Round trip / Economy | Dec 05 2024 - Dec 19 2024 | From USD 777* Seen: 11 hrs ago |
| FromSeattle (SEA) | ToLondon (LHR) | Round trip / Economy | Nov 12 2024 - Nov 16 2024 | From USD 1,004* Seen: 19 hrs ago |
| FromSeattle (SEA) | ToLondon (LHR) | Round trip / Economy | Dec 12 2024 - Jan 03 2025 | From USD 1,001* Seen: 2 days ago |
| FromSeattle (SEA) | ToLondon (LGW) | Round trip / Economy | Mar 04 2025 - Mar 13 2025 | From USD 626* Seen: 17 hrs ago |
| FromSeattle (SEA) | ToLondon (LGW) | Round trip / Economy | Nov 20 2024 - Nov 29 2024 | From USD 641* Seen: 22 hrs ago |
*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking
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.