Flights from Seattle to United Kingdom available from USD 588*

Promo code

Deals on flights in next three months

USD

Seattle (SEA)to

London (LON)
Sep 08 2025 - Oct 07 2025
From
USD 653
Viewed 3 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Sep 08 2025 - Oct 09 2025
From
USD 653
Viewed 3 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Sep 09 2025 - Oct 01 2025
From
USD 653
Viewed 3 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Sep 09 2025 - Oct 02 2025
From
USD 653
Viewed 3 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Aug 10 2025 - Aug 31 2025
From
USD 714
Viewed 14 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Aug 24 2025 - Aug 30 2025
From
USD 714
Viewed 2 days ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Jul 06 2025 - Jul 23 2025
From
USD 999
Viewed 19 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Jul 06 2025 - Jul 22 2025
From
USD 999
Viewed 19 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Sep 02 2025 - Oct 02 2025
From
USD 687
Viewed 4 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Sep 05 2025 - Oct 04 2025
From
USD 687
Viewed 4 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Sep 09 2025 - Oct 02 2025
From
USD 687
Viewed 4 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Sep 02 2025 - Oct 01 2025
From
USD 687
Viewed 4 hrs ago
Round trip
Economy

*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

Blue image with a map of Iceland and text that reads: Include a little more of Iceland in your journey. Add a Stopover

Plan ahead for your trip from Seattle to United Kingdom with Icelandair

USD
Plan ahead for your trip from Seattle to United Kingdom with Icelandair
From
To
Fare type
Dates
Price
Seattle (SEA)London (LON)Round trip
/
Economy		Mar 17 2026 - Mar 24 2026

From

USD 647

Viewed 20 hrs ago

Seattle (SEA)London (LHR)Round trip
/
Economy		Sep 24 2025 - Sep 30 2025

From

USD 664

Viewed 3 hrs ago

Seattle (SEA)Glasgow (GLA)Round trip
/
Economy		Mar 14 2026 - Mar 23 2026

From

USD 680

Viewed 1 day ago

Seattle (SEA)London (LGW)Round trip
/
Economy		Nov 25 2025 - Dec 06 2025

From

USD 697

Viewed 1 day ago

Seattle (SEA)Manchester (MAN)Round trip
/
Economy		Nov 06 2025 - Dec 04 2025

From

USD 588

Viewed 14 hrs ago

Seattle (SEA)Edinburgh (EDI)Round trip
/
Economy		Oct 13 2025 - Oct 21 2025

From

USD 600

Viewed 2 days ago

*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

 

Our most popular connections