Flights from Philadelphia to London

Cheapest flights from Philadelphia

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.

Tue, Aug 26 - Fri, Sep 5

PHL

Philadelphia Intl.

LGW

Gatwick

$493 Roundtrip, found 6 days ago

$493

Roundtrip

found 6 days ago

Select Virgin Atlantic flight, departing Tue, Aug 26 from Philadelphia Intl. to Gatwick, returning Fri, Sep 5, priced at $493 found 6 days ago

Tue, Aug 26 - Thu, Sep 11

PHL

Philadelphia Intl.

LHR

Heathrow

$517 Roundtrip, found 6 days ago

$517

Roundtrip

found 6 days ago

Select United flight, departing Tue, Aug 26 from Philadelphia Intl. to Heathrow, returning Thu, Sep 11, priced at $517 found 6 days ago

Mon, Sep 1 - Thu, Sep 11

PHL

Philadelphia Intl.

LHR

Heathrow

$521 Roundtrip, found 6 days ago

$521

Roundtrip

found 6 days ago

Select United flight, departing Mon, Sep 1 from Philadelphia Intl. to Heathrow, returning Thu, Sep 11, priced at $521 found 6 days ago

Tue, Aug 26 - Fri, Sep 5

PHL

Philadelphia Intl.

LHR

Heathrow

$524 Roundtrip, found 6 days ago

$524

Roundtrip

found 6 days ago

Select Air Canada flight, departing Tue, Aug 26 from Philadelphia Intl. to Heathrow, returning Fri, Sep 5, priced at $524 found 6 days ago

Wed, Aug 27 - Wed, Sep 10

PHL

Philadelphia Intl.

LHR

Heathrow

$528 Roundtrip, found 6 days ago

$528

Roundtrip

found 6 days ago

Select British Airways flight, departing Wed, Aug 27 from Philadelphia Intl. to Heathrow, returning Wed, Sep 10, priced at $528 found 6 days ago

Mon, Aug 25 - Fri, Sep 5

PHL

Philadelphia Intl.

LGW

Gatwick

$599 Roundtrip, found 6 days ago

$599

Roundtrip

found 6 days ago

Select JetBlue Airways flight, departing Mon, Aug 25 from Philadelphia Intl. to Gatwick, returning Fri, Sep 5, priced at $599 found 6 days ago

Wed, Aug 27 - Fri, Sep 5

PHL

Philadelphia Intl.

LGW

Gatwick

$613 Roundtrip, found 6 days ago

$613

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Aug 27 from Philadelphia Intl. to Gatwick, returning Fri, Sep 5, priced at $613 found 6 days ago

Fri, Aug 29 - Mon, Sep 8

PHL

Philadelphia Intl.

LGW

Gatwick

$743 Roundtrip, found 6 days ago

$743

Roundtrip

found 6 days ago

Select American Airlines flight, departing Fri, Aug 29 from Philadelphia Intl. to Gatwick, returning Mon, Sep 8, priced at $743 found 6 days ago

Thu, Aug 28 - Mon, Sep 8

PHL

Philadelphia Intl.

LGW

Gatwick

$889 Roundtrip, found 6 days ago

$889

Roundtrip

found 6 days ago

Select Swiss International Air Lines flight, departing Thu, Aug 28 from Philadelphia Intl. to Gatwick, returning Mon, Sep 8, priced at $889 found 6 days ago

Thu, Aug 28 - Sun, Sep 7

PHL

Philadelphia Intl.

LGW

Gatwick

$1,192 Roundtrip, found 6 days ago

$1,192

Roundtrip

found 6 days ago

Select TAP Portugal flight, departing Thu, Aug 28 from Philadelphia Intl. to Gatwick, returning Sun, Sep 7, priced at $1,192 found 6 days ago

Fri, Aug 29 - Mon, Sep 8

PHL

Philadelphia Intl.

LGW

Gatwick

$1,287 Roundtrip, found 6 days ago

$1,287

Roundtrip

found 6 days ago

Select Icelandair flight, departing Fri, Aug 29 from Philadelphia Intl. to Gatwick, returning Mon, Sep 8, priced at $1,287 found 6 days ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,443 Roundtrip, found 10 hours ago

$1,443

Roundtrip

found 10 hours ago

Select Aer Lingus flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,443 found 10 hours ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,499 Roundtrip, found 10 hours ago

$1,499

Roundtrip

found 10 hours ago

Select Scandinavian Airlines flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,499 found 10 hours ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,503 Roundtrip, found 10 hours ago

$1,503

Roundtrip

found 10 hours ago

Select United flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,503 found 10 hours ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,514 Roundtrip, found 10 hours ago

$1,514

Roundtrip

found 10 hours ago

Select Lufthansa flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,514 found 10 hours ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,519 Roundtrip, found 10 hours ago

$1,519

Roundtrip

found 10 hours ago

Select Virgin Atlantic flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,519 found 10 hours ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,544 Roundtrip, found 10 hours ago

$1,544

Roundtrip

found 10 hours ago

Select American Airlines flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,544 found 10 hours ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,571 Roundtrip, found 10 hours ago

$1,571

Roundtrip

found 10 hours ago

Select KLM flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,571 found 10 hours ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,744 Roundtrip, found 10 hours ago

$1,744

Roundtrip

found 10 hours ago

Select Iberia flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,744 found 10 hours ago

Sat, Sep 20 - Thu, Sep 25

PHL

Philadelphia Intl.

LHR

Heathrow

$1,744 Roundtrip, found 10 hours ago

$1,744

Roundtrip

found 10 hours ago

Select Finnair flight, departing Sat, Sep 20 from Philadelphia Intl. to Heathrow, returning Thu, Sep 25, priced at $1,744 found 10 hours ago