Flights from Seattle to United Kingdom available from USD 697*

Promo code

Deals on flights in next three months

USD

Seattle (SEA)to

London (LON)
Oct 01 2026 - Oct 08 2026
From
USD 739
Viewed 5 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Oct 02 2026 - Oct 13 2026
From
USD 739
Viewed 5 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Oct 02 2026 - Oct 15 2026
From
USD 739
Viewed 5 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LON)
Oct 02 2026 - Oct 20 2026
From
USD 739
Viewed 5 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Oct 02 2026 - Oct 06 2026
From
USD 740
Viewed 1 day ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Oct 02 2026 - Oct 14 2026
From
USD 740
Viewed 2 days ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Oct 08 2026 - Oct 18 2026
From
USD 741
Viewed 23 hrs ago
Round trip
Economy

Seattle (SEA)to

London (LHR)
Sep 02 2026 - Sep 22 2026
From
USD 744
Viewed 2 days ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Aug 31 2026 - Oct 01 2026
From
USD 783
Viewed 2 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Aug 31 2026 - Sep 04 2026
From
USD 790
Viewed 2 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Aug 31 2026 - Sep 10 2026
From
USD 790
Viewed 2 hrs ago
Round trip
Economy

Seattle (SEA)to

Glasgow (GLA)
Aug 31 2026 - Sep 17 2026
From
USD 790
Viewed 2 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.

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 (LGW)Round trip
/
Economy		Oct 02 2026 - Oct 09 2026

From

USD 697

Viewed 4 hrs ago

Seattle (SEA)London (LON)Round trip
/
Economy		Oct 11 2026 - Oct 15 2026

From

USD 739

Viewed 5 hrs ago

Seattle (SEA)London (LHR)Round trip
/
Economy		Oct 02 2026 - Oct 06 2026

From

USD 740

Viewed 1 day ago

Seattle (SEA)Glasgow (GLA)Round trip
/
Economy		Dec 14 2026 - Dec 26 2026

From

USD 754

Viewed 2 hrs ago

Seattle (SEA)Manchester (MAN)Round trip
/
Economy		Dec 28 2026 - Jan 07 2027

From

USD 762

Viewed 25 minutes ago

Seattle (SEA)Edinburgh (EDI)Round trip
/
Economy		Mar 01 2027 - Mar 11 2027

From

USD 959

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.