Cheap United flights Washington (IAD) to Philadelphia (PHL)

Cheap United flights Washington (IAD) to Philadelphia (PHL)

Prices were available within the past 7 days and start at for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 24 - Wed, Oct 1

IAD

Washington

PHL

Philadelphia

$259 Roundtrip, found 4 days ago

$259

Roundtrip

found 4 days ago

Select United flight, departing Wed, Sep 24 from Washington to Philadelphia, returning Wed, Oct 1, priced at $259 found 4 days ago

Wed, Sep 24 - Sat, Sep 27

IAD

Washington

PHL

Philadelphia

$269 Roundtrip, found 4 days ago

$269

Roundtrip

found 4 days ago

Select United flight, departing Wed, Sep 24 from Washington to Philadelphia, returning Sat, Sep 27, priced at $269 found 4 days ago

Wed, Sep 24 - Fri, Sep 26

IAD

Washington

PHL

Philadelphia

$615 Roundtrip, found 4 days ago

$615

Roundtrip

found 4 days ago

Select United flight, departing Wed, Sep 24 from Washington to Philadelphia, returning Fri, Sep 26, priced at $615 found 4 days ago

Wed, Sep 24 - Thu, Sep 25

IAD

Washington

PHL

Philadelphia

$677 Roundtrip, found 4 days ago

$677

Roundtrip

found 4 days ago

Select United flight, departing Wed, Sep 24 from Washington to Philadelphia, returning Thu, Sep 25, priced at $677 found 4 days ago

Tue, Sep 23 - Thu, Sep 25

IAD

Washington

PHL

Philadelphia

$743 Roundtrip, found 4 days ago

$743

Roundtrip

found 4 days ago

Select United flight, departing Tue, Sep 23 from Washington to Philadelphia, returning Thu, Sep 25, priced at $743 found 4 days ago