Flights From London (LON) to SeaTac (SEA)

Selected fares from London to SeaTac

The cheapest prices found with in the last 7 days for return flights were CA $838 and CA $544 for one-way flights to SeaTac for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Apr 16 - Thu, Apr 30

LGW

Gatwick

SEA

Seattle - Tacoma Intl.

CA $838 Roundtrip, found 1 day ago

CA $838

Roundtrip

found 1 day ago

Select Icelandair flight, departing Thu, Apr 16 from Gatwick to Seattle - Tacoma Intl., returning Thu, Apr 30, priced at CA $838 found 1 day ago

Sun, Mar 8 - Tue, Mar 31

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

CA $844 Roundtrip, found 6 days ago

CA $844

Roundtrip

found 6 days ago

Select Icelandair flight, departing Sun, Mar 8 from Heathrow to Seattle - Tacoma Intl., returning Tue, Mar 31, priced at CA $844 found 6 days ago

Wed, May 13 - Tue, May 19

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

CA $984 Roundtrip, found 2 days ago

CA $984

Roundtrip

found 2 days ago

Select Aer Lingus flight, departing Wed, May 13 from Heathrow to Seattle - Tacoma Intl., returning Tue, May 19, priced at CA $984 found 2 days ago