$85 Cheap Frontier Airlines flights Seattle (SEA) to Philadelphia (PHL)

$85 Cheap Frontier Airlines flights Seattle (SEA) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $85 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, May 4 - Wed, May 13

SEA

Seattle

PHL

Philadelphia

$195 Roundtrip, found 9 hours ago

$195

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Mon, May 4 from Seattle to Philadelphia, returning Wed, May 13, priced at $195 found 9 hours ago

Fri, May 1 - Mon, May 4

SEA

Seattle

PHL

Philadelphia

$215 Roundtrip, found 9 hours ago

$215

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Fri, May 1 from Seattle to Philadelphia, returning Mon, May 4, priced at $215 found 9 hours ago

Wed, May 20 - Tue, Jun 9

SEA

Seattle

PHL

Philadelphia

$220 Roundtrip, found 4 hours ago

$220

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Wed, May 20 from Seattle to Philadelphia, returning Tue, Jun 9, priced at $220 found 4 hours ago

Wed, May 20 - Mon, Jun 8

SEA

Seattle

PHL

Philadelphia

$225 Roundtrip, found 4 hours ago

$225

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Wed, May 20 from Seattle to Philadelphia, returning Mon, Jun 8, priced at $225 found 4 hours ago

Thu, May 28 - Mon, Jun 8

SEA

Seattle

PHL

Philadelphia

$230 Roundtrip, found 1 day ago

$230

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, May 28 from Seattle to Philadelphia, returning Mon, Jun 8, priced at $230 found 1 day ago

Mon, May 4 - Sun, May 17

SEA

Seattle

PHL

Philadelphia

$235 Roundtrip, found 9 hours ago

$235

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Mon, May 4 from Seattle to Philadelphia, returning Sun, May 17, priced at $235 found 9 hours ago