$458 Cheap United flights Philadelphia (PHL) to London (LHR)

$458 Cheap United flights Philadelphia (PHL) to London (LHR)

Prices were available within the past 7 days and start at $458 for one-way flights and $707 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 7 - Tue, Dec 16

PHL

Philadelphia

LHR

London

$707 Roundtrip, found 5 hours ago

$707

Roundtrip

found 5 hours ago

Select United flight, departing Sun, Dec 7 from Philadelphia to London, returning Tue, Dec 16, priced at $707 found 5 hours ago

Sun, Dec 7 - Mon, Dec 15

PHL

Philadelphia

LHR

London

$726 Roundtrip, found 5 hours ago

$726

Roundtrip

found 5 hours ago

Select United flight, departing Sun, Dec 7 from Philadelphia to London, returning Mon, Dec 15, priced at $726 found 5 hours ago

Sun, Dec 7 - Wed, Dec 17

PHL

Philadelphia

LHR

London

$735 Roundtrip, found 5 hours ago

$735

Roundtrip

found 5 hours ago

Select United flight, departing Sun, Dec 7 from Philadelphia to London, returning Wed, Dec 17, priced at $735 found 5 hours ago