$149 Cheap United flights Seattle (SEA) to Philadelphia (PHL)

$149 Cheap United flights Seattle (SEA) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $149 for one-way flights and $554 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jul 28 - Tue, Jul 29

SEA

Seattle

PHL

Philadelphia

$554 Roundtrip, found 6 hours ago

$554

Roundtrip

found 6 hours ago

Select United flight, departing Mon, Jul 28 from Seattle to Philadelphia, returning Tue, Jul 29, priced at $554 found 6 hours ago

Mon, Jul 28 - Tue, Jul 29

SEA

Seattle

PHL

Philadelphia

$606 Roundtrip, found 6 hours ago

$606

Roundtrip

found 6 hours ago

Select United flight, departing Mon, Jul 28 from Seattle to Philadelphia, returning Tue, Jul 29, priced at $606 found 6 hours ago

Mon, Jul 28 - Tue, Jul 29

SEA

Seattle

PHL

Philadelphia

$607 Roundtrip, found 6 hours ago

$607

Roundtrip

found 6 hours ago

Select United flight, departing Mon, Jul 28 from Seattle to Philadelphia, returning Tue, Jul 29, priced at $607 found 6 hours ago

Mon, Jul 28 - Tue, Jul 29

SEA

Seattle

PHL

Philadelphia

$625 Roundtrip, found 6 hours ago

$625

Roundtrip

found 6 hours ago

Select United flight, departing Mon, Jul 28 from Seattle to Philadelphia, returning Tue, Jul 29, priced at $625 found 6 hours ago

Mon, Jul 28 - Tue, Jul 29

SEA

Seattle

PHL

Philadelphia

$629 Roundtrip, found 6 hours ago

$629

Roundtrip

found 6 hours ago

Select United flight, departing Mon, Jul 28 from Seattle to Philadelphia, returning Tue, Jul 29, priced at $629 found 6 hours ago

Mon, Jul 28 - Tue, Jul 29

SEA

Seattle

PHL

Philadelphia

$630 Roundtrip, found 6 hours ago

$630

Roundtrip

found 6 hours ago

Select United flight, departing Mon, Jul 28 from Seattle to Philadelphia, returning Tue, Jul 29, priced at $630 found 6 hours ago