Flights from London to Seattle

Cheapest flights from London

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$597 Roundtrip, found 20 hours ago

$597

Roundtrip

found 20 hours ago

Select Icelandair flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $597 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$611 Roundtrip, found 20 hours ago

$611

Roundtrip

found 20 hours ago

Select Lufthansa flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $611 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$615 Roundtrip, found 20 hours ago

$615

Roundtrip

found 20 hours ago

Select United flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $615 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$619 Roundtrip, found 20 hours ago

$619

Roundtrip

found 20 hours ago

Select Air Canada flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $619 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$625 Roundtrip, found 20 hours ago

$625

Roundtrip

found 20 hours ago

Select Air Canada flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $625 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$631 Roundtrip, found 20 hours ago

$631

Roundtrip

found 20 hours ago

Select United flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $631 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$632 Roundtrip, found 20 hours ago

$632

Roundtrip

found 20 hours ago

Select Air Canada flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $632 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$635 Roundtrip, found 20 hours ago

$635

Roundtrip

found 20 hours ago

Select United flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $635 found 20 hours ago

Mon, Nov 3 - Tue, Nov 25

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$642 Roundtrip, found 20 hours ago

$642

Roundtrip

found 20 hours ago

Select Virgin Atlantic flight, departing Mon, Nov 3 from Heathrow to Seattle - Tacoma Intl., returning Tue, Nov 25, priced at $642 found 20 hours ago

Tue, Nov 4 - Tue, Nov 25

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$642 Roundtrip, found 20 hours ago

$642

Roundtrip

found 20 hours ago

Select American Airlines flight, departing Tue, Nov 4 from Heathrow to Seattle - Tacoma Intl., returning Tue, Nov 25, priced at $642 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$656 Roundtrip, found 20 hours ago

$656

Roundtrip

found 20 hours ago

Select Brussels Airlines flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $656 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$656 Roundtrip, found 20 hours ago

$656

Roundtrip

found 20 hours ago

Select Austrian Airlines flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $656 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$704 Roundtrip, found 20 hours ago

$704

Roundtrip

found 20 hours ago

Select Delta flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $704 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$712 Roundtrip, found 20 hours ago

$712

Roundtrip

found 20 hours ago

Select British Airways flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $712 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$758 Roundtrip, found 20 hours ago

$758

Roundtrip

found 20 hours ago

Select Air France flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $758 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$767 Roundtrip, found 20 hours ago

$767

Roundtrip

found 20 hours ago

Select KLM flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $767 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$777 Roundtrip, found 20 hours ago

$777

Roundtrip

found 20 hours ago

Select Iberia flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $777 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$783 Roundtrip, found 20 hours ago

$783

Roundtrip

found 20 hours ago

Select Finnair flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $783 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$920 Roundtrip, found 20 hours ago

$920

Roundtrip

found 20 hours ago

Select Aer Lingus flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $920 found 20 hours ago

Thu, Nov 6 - Fri, Nov 28

LHR

Heathrow

SEA

Seattle - Tacoma Intl.

$1,256 Roundtrip, found 20 hours ago

$1,256

Roundtrip

found 20 hours ago

Select WestJet flight, departing Thu, Nov 6 from Heathrow to Seattle - Tacoma Intl., returning Fri, Nov 28, priced at $1,256 found 20 hours ago