Flights from Seattle to United Kingdom available from USD 557*

Promo code

Deals on flights in next three months

USD

Seattle (SEA)to

London (LON)
May 06 2025 - May 13 2025
From
USD 633
Viewed 2 days ago
Round trip
/
Economy

Seattle (SEA)to

London (LON)
Jul 22 2025 - Aug 19 2025
From
USD 648
Viewed 2 days ago
Round trip
/
Economy

Seattle (SEA)to

London (LON)
Jul 22 2025 - Aug 20 2025
From
USD 648
Viewed 2 days ago
Round trip
/
Economy

Seattle (SEA)to

London (LON)
Jul 24 2025 - Aug 21 2025
From
USD 648
Viewed 2 days ago
Round trip
/
Economy

Seattle (SEA)to

Glasgow (GLA)
May 04 2025 - May 09 2025
From
USD 733
Viewed 1 day ago
Round trip
/
Economy

Seattle (SEA)to

Glasgow (GLA)
May 05 2025 - May 09 2025
From
USD 733
Viewed 1 day ago
Round trip
/
Economy

Seattle (SEA)to

Glasgow (GLA)
Jul 29 2025 - Aug 26 2025
From
USD 750
Viewed 1 day ago
Round trip
/
Economy

Seattle (SEA)to

Glasgow (GLA)
Jul 29 2025 - Aug 27 2025
From
USD 750
Viewed 1 day ago
Round trip
/
Economy

Seattle (SEA)to

London (LHR)
Jun 02 2025 - Jun 07 2025
From
USD 855
Viewed 2 days ago
Round trip
/
Economy

Seattle (SEA)to

London (LHR)
May 02 2025 - May 04 2025
From
USD 1,144
Viewed 1 hour ago
Round trip
/
Economy

Seattle (SEA)to

London (LHR)
Jul 06 2025 - Jul 31 2025
From
USD 1,159
Viewed 8 hrs ago
Round trip
/
Economy

Seattle (SEA)to

London (LHR)
Jun 16 2025 - Jun 23 2025
From
USD 1,280
Viewed 1 day 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		Sep 13 2025 - Oct 09 2025

From

USD 557

Viewed 23 hrs ago

Seattle (SEA)Glasgow (GLA)Round trip
/
Economy		Sep 09 2025 - Sep 23 2025

From

USD 601

Viewed 2 hrs ago

Seattle (SEA)London (LHR)Round trip
/
Economy		Aug 15 2025 - Aug 30 2025

From

USD 615

Viewed 2 hrs ago

Seattle (SEA)Manchester (MAN)Round trip
/
Economy		Jan 20 2026 - Feb 10 2026

From

USD 570

Viewed 20 hrs ago

Seattle (SEA)London (LGW)Round trip
/
Economy		Aug 30 2025 - Sep 05 2025

From

USD 695

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