$135 Cheap Delta flights Seattle (SEA) to Philadelphia (PHL)

$135 Cheap Delta flights Seattle (SEA) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $135 for one-way flights and $437 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 26 - Thu, Oct 2

SEA

Seattle

PHL

Philadelphia

$437 Roundtrip, found 16 hours ago

$437

Roundtrip

found 16 hours ago

Select Delta flight, departing Fri, Sep 26 from Seattle to Philadelphia, returning Thu, Oct 2, priced at $437 found 16 hours ago

Sun, Sep 28 - Sat, Oct 4

SEA

Seattle

PHL

Philadelphia

$447 Roundtrip, found 16 hours ago

$447

Roundtrip

found 16 hours ago

Select Delta flight, departing Sun, Sep 28 from Seattle to Philadelphia, returning Sat, Oct 4, priced at $447 found 16 hours ago

Sat, Sep 27 - Sun, Oct 5

SEA

Seattle

PHL

Philadelphia

$457 Roundtrip, found 16 hours ago

$457

Roundtrip

found 16 hours ago

Select Delta flight, departing Sat, Sep 27 from Seattle to Philadelphia, returning Sun, Oct 5, priced at $457 found 16 hours ago

Fri, Sep 26 - Mon, Oct 6

SEA

Seattle

PHL

Philadelphia

$478 Roundtrip, found 16 hours ago

$478

Roundtrip

found 16 hours ago

Select Delta flight, departing Fri, Sep 26 from Seattle to Philadelphia, returning Mon, Oct 6, priced at $478 found 16 hours ago