Flights from Seattle to United Kingdom available from USD 726*

Promo code

Deals on flights in next three months

USD

Seattle (SEA)to

London (LHR)
Aug 04 2026 - Aug 16 2026
From
USD 726
Viewed 6 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Aug 19 2026 - Aug 27 2026
From
USD 755
Viewed 13 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Aug 22 2026 - Sep 06 2026
From
USD 756
Viewed 13 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Jul 06 2026 - Jul 21 2026
From
USD 757
Viewed 2 days ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Aug 28 2026 - Sep 07 2026
From
USD 751
Viewed 1 day ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Sep 01 2026 - Sep 08 2026
From
USD 754
Viewed 1 day ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Sep 08 2026 - Sep 24 2026
From
USD 754
Viewed 1 day ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Sep 02 2026 - Sep 08 2026
From
USD 754
Viewed 21 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Aug 11 2026 - Aug 16 2026
From
USD 762
Viewed 2 days ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Sep 07 2026 - Dec 14 2026
From
USD 804
Viewed 1 day ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Sep 04 2026 - Sep 11 2026
From
USD 813
Viewed 22 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Jul 04 2026 - Jul 21 2026
From
USD 835
Viewed 2 days 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.

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 (LHR)Round trip
/
Economy		Aug 04 2026 - Aug 16 2026

From

USD 726

Viewed 6 hrs ago

Seattle (SEA)London (LON)Round trip
/
Economy		Oct 26 2026 - Nov 03 2026

From

USD 741

Viewed 1 day ago

Seattle (SEA)London (LGW)Round trip
/
Economy		Sep 26 2026 - Oct 09 2026

From

USD 747

Viewed 2 days ago

Seattle (SEA)Glasgow (GLA)Round trip
/
Economy		Aug 11 2026 - Aug 16 2026

From

USD 762

Viewed 2 days ago

Seattle (SEA)Manchester (MAN)Round trip
/
Economy		Sep 20 2026 - Sep 25 2026

From

USD 825

Viewed 2 days ago

Seattle (SEA)Edinburgh (EDI)Round trip
/
Economy		Jul 23 2026 - Jul 29 2026

From

USD 913

Viewed 1 day 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.