Cheap United flights London (LHR) to Seattle (SEA)

Cheap United flights London (LHR) to Seattle (SEA)

Prices were available within the past 7 days and start at for one-way flights and $677 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 7 - Mon, Nov 3

LHR

London

SEA

Seattle

$677 Roundtrip, found 1 day ago

$677

Roundtrip

found 1 day ago

Select United flight, departing Thu, Aug 7 from London to Seattle, returning Mon, Nov 3, priced at $677 found 1 day ago

Tue, Aug 5 - Wed, Nov 5

LHR

London

SEA

Seattle

$677 Roundtrip, found 1 day ago

$677

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 5 from London to Seattle, returning Wed, Nov 5, priced at $677 found 1 day ago

Tue, Aug 5 - Wed, Nov 5

LHR

London

SEA

Seattle

$682 Roundtrip, found 1 day ago

$682

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 5 from London to Seattle, returning Wed, Nov 5, priced at $682 found 1 day ago

Mon, Aug 4 - Sun, Nov 2

LHR

London

SEA

Seattle

$694 Roundtrip, found 1 day ago

$694

Roundtrip

found 1 day ago

Select United flight, departing Mon, Aug 4 from London to Seattle, returning Sun, Nov 2, priced at $694 found 1 day ago

Tue, Aug 5 - Sun, Nov 2

LHR

London

SEA

Seattle

$709 Roundtrip, found 1 day ago

$709

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 5 from London to Seattle, returning Sun, Nov 2, priced at $709 found 1 day ago

Tue, Aug 5 - Wed, Nov 5

LHR

London

SEA

Seattle

$719 Roundtrip, found 1 day ago

$719

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 5 from London to Seattle, returning Wed, Nov 5, priced at $719 found 1 day ago

Tue, Aug 5 - Wed, Nov 5

LHR

London

SEA

Seattle

$726 Roundtrip, found 1 day ago

$726

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 5 from London to Seattle, returning Wed, Nov 5, priced at $726 found 1 day ago

Fri, Aug 8 - Sun, Nov 2

LHR

London

SEA

Seattle

$749 Roundtrip, found 1 day ago

$749

Roundtrip

found 1 day ago

Select United flight, departing Fri, Aug 8 from London to Seattle, returning Sun, Nov 2, priced at $749 found 1 day ago