$401 Cheap Air Canada flights Seattle (SEA) to London (LHR)

$401 Cheap Air Canada flights Seattle (SEA) to London (LHR)

Prices were available within the past 7 days and start at $401 for one-way flights and $636 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, May 3 - Fri, May 15

SEA

Seattle

LHR

London

$636 Roundtrip, found 17 hours ago

$636

Roundtrip

found 17 hours ago

Select Air Canada flight, departing Sun, May 3 from Seattle to London, returning Fri, May 15, priced at $636 found 17 hours ago

Sun, May 3 - Fri, May 15

SEA

Seattle

LHR

London

$641 Roundtrip, found 17 hours ago

$641

Roundtrip

found 17 hours ago

Select Air Canada flight, departing Sun, May 3 from Seattle to London, returning Fri, May 15, priced at $641 found 17 hours ago

Sun, May 3 - Fri, May 15

SEA

Seattle

LHR

London

$647 Roundtrip, found 17 hours ago

$647

Roundtrip

found 17 hours ago

Select Air Canada flight, departing Sun, May 3 from Seattle to London, returning Fri, May 15, priced at $647 found 17 hours ago

Sun, May 3 - Fri, May 15

SEA

Seattle

LHR

London

$675 Roundtrip, found 17 hours ago

$675

Roundtrip

found 17 hours ago

Select Air Canada flight, departing Sun, May 3 from Seattle to London, returning Fri, May 15, priced at $675 found 17 hours ago

Sun, May 3 - Fri, May 15

SEA

Seattle

LHR

London

$758 Roundtrip, found 17 hours ago

$758

Roundtrip

found 17 hours ago

Select Air Canada flight, departing Sun, May 3 from Seattle to London, returning Fri, May 15, priced at $758 found 17 hours ago