£487 Cheap Icelandair flights from London to Seattle (LHR→SEA)

Icelandair flights from London to Seattle (LHR→SEA)

Prices were available within the past 7 days and start at £487 for one-way flights and £434 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, 23 Aug - Wed, 1 Oct

LHR

London

SEA

Seattle

£434 Return, found 6 days ago

£434

Return

found 6 days ago

Select Icelandair flight, departing Sat, 23 Aug from London to Seattle, returning Wed, 1 Oct, priced at £434 found 6 days ago

Thu, 18 Sep - Fri, 3 Oct

LHR

London

SEA

Seattle

£435 Return, found 5 days ago

£435

Return

found 5 days ago

Select Icelandair flight, departing Thu, 18 Sep from London to Seattle, returning Fri, 3 Oct, priced at £435 found 5 days ago

Sun, 7 Sep - Fri, 12 Sep

LHR

London

SEA

Seattle

£441 Return, found 2 hours ago

£441

Return

found 2 hours ago

Select Icelandair flight, departing Sun, 7 Sep from London to Seattle, returning Fri, 12 Sep, priced at £441 found 2 hours ago

Mon, 12 Jan - Thu, 22 Jan

LHR

London

SEA

Seattle

£441 Return, found 4 days ago

£441

Return

found 4 days ago

Select Icelandair flight, departing Mon, 12 Jan from London to Seattle, returning Thu, 22 Jan, priced at £441 found 4 days ago

Thu, 2 Oct - Wed, 8 Oct

LHR

London

SEA

Seattle

£450 Return, found 1 day ago

£450

Return

found 1 day ago

Select Icelandair flight, departing Thu, 2 Oct from London to Seattle, returning Wed, 8 Oct, priced at £450 found 1 day ago

Tue, 30 Sep - Tue, 7 Oct

LHR

London

SEA

Seattle

£451 Return, found 7 hours ago

£451

Return

found 7 hours ago

Select Icelandair flight, departing Tue, 30 Sep from London to Seattle, returning Tue, 7 Oct, priced at £451 found 7 hours ago