$617 Cheap United flights Philadelphia (PHL) to London (LHR)

$617 Cheap United flights Philadelphia (PHL) to London (LHR)

Prices were available within the past 7 days and start at $617 for one-way flights and $651 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Mar 8 - Mon, Mar 30

PHL

Philadelphia

LHR

London

$651 Roundtrip, found 11 hours ago

$651

Roundtrip

found 11 hours ago

Select United flight, departing Sun, Mar 8 from Philadelphia to London, returning Mon, Mar 30, priced at $651 found 11 hours ago

Sun, Mar 15 - Fri, Apr 3

PHL

Philadelphia

LHR

London

$672 Roundtrip, found 11 hours ago

$672

Roundtrip

found 11 hours ago

Select United flight, departing Sun, Mar 15 from Philadelphia to London, returning Fri, Apr 3, priced at $672 found 11 hours ago