Flights from Philadelphia to Colorado Springs

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.

Thu, Jul 31 - Tue, Aug 5

PHL

Philadelphia Intl.

DEN

Denver Intl.

$146 Roundtrip, found 1 day ago

$146

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 31 from Philadelphia Intl. to Denver Intl., returning Tue, Aug 5, priced at $146 found 1 day ago

Thu, Aug 14 - Fri, Aug 15

PHL

Philadelphia Intl.

DEN

Denver Intl.

$156 Roundtrip, found 15 hours ago

$156

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Thu, Aug 14 from Philadelphia Intl. to Denver Intl., returning Fri, Aug 15, priced at $156 found 15 hours ago

Fri, Aug 8 - Fri, Aug 15

PHL

Philadelphia Intl.

DEN

Denver Intl.

$166 Roundtrip, found 15 hours ago

$166

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Philadelphia Intl. to Denver Intl., returning Fri, Aug 15, priced at $166 found 15 hours ago

Thu, Aug 14 - Mon, Aug 18

PHL

Philadelphia Intl.

DEN

Denver Intl.

$168 Roundtrip, found 15 hours ago

$168

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Thu, Aug 14 from Philadelphia Intl. to Denver Intl., returning Mon, Aug 18, priced at $168 found 15 hours ago

Wed, Jul 30 - Tue, Aug 5

PHL

Philadelphia Intl.

DEN

Denver Intl.

$175 Roundtrip, found 1 day ago

$175

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Philadelphia Intl. to Denver Intl., returning Tue, Aug 5, priced at $175 found 1 day ago

Fri, Aug 8 - Sat, Aug 16

PHL

Philadelphia Intl.

DEN

Denver Intl.

$176 Roundtrip, found 15 hours ago

$176

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Philadelphia Intl. to Denver Intl., returning Sat, Aug 16, priced at $176 found 15 hours ago

Fri, Aug 8 - Mon, Aug 18

PHL

Philadelphia Intl.

DEN

Denver Intl.

$178 Roundtrip, found 15 hours ago

$178

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Philadelphia Intl. to Denver Intl., returning Mon, Aug 18, priced at $178 found 15 hours ago

Sat, Aug 9 - Fri, Aug 15

PHL

Philadelphia Intl.

DEN

Denver Intl.

$185 Roundtrip, found 15 hours ago

$185

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sat, Aug 9 from Philadelphia Intl. to Denver Intl., returning Fri, Aug 15, priced at $185 found 15 hours ago

Tue, Aug 12 - Sat, Aug 16

PHL

Philadelphia Intl.

DEN

Denver Intl.

$186 Roundtrip, found 15 hours ago

$186

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Tue, Aug 12 from Philadelphia Intl. to Denver Intl., returning Sat, Aug 16, priced at $186 found 15 hours ago

Mon, Aug 11 - Thu, Aug 14

PHL

Philadelphia Intl.

DEN

Denver Intl.

$188 Roundtrip, found 15 hours ago

$188

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Mon, Aug 11 from Philadelphia Intl. to Denver Intl., returning Thu, Aug 14, priced at $188 found 15 hours ago

Sat, Jul 5 - Wed, Jul 9

PHL

Philadelphia Intl.

DEN

Denver Intl.

$191 Roundtrip, found 3 days ago

$191

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Jul 5 from Philadelphia Intl. to Denver Intl., returning Wed, Jul 9, priced at $191 found 3 days ago

Sat, Aug 9 - Sat, Aug 16

PHL

Philadelphia Intl.

DEN

Denver Intl.

$195 Roundtrip, found 15 hours ago

$195

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sat, Aug 9 from Philadelphia Intl. to Denver Intl., returning Sat, Aug 16, priced at $195 found 15 hours ago

Tue, Jul 8 - Sat, Jul 12

PHL

Philadelphia Intl.

DEN

Denver Intl.

$197 Roundtrip, found 3 days ago

$197

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Jul 8 from Philadelphia Intl. to Denver Intl., returning Sat, Jul 12, priced at $197 found 3 days ago

Sat, Aug 9 - Mon, Aug 18

PHL

Philadelphia Intl.

DEN

Denver Intl.

$197 Roundtrip, found 15 hours ago

$197

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sat, Aug 9 from Philadelphia Intl. to Denver Intl., returning Mon, Aug 18, priced at $197 found 15 hours ago

Sat, May 24 - Thu, May 29

PHL

Philadelphia Intl.

DEN

Denver Intl.

$198 Roundtrip, found 15 hours ago

$198

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sat, May 24 from Philadelphia Intl. to Denver Intl., returning Thu, May 29, priced at $198 found 15 hours ago

Sat, Aug 2 - Fri, Aug 8

PHL

Philadelphia Intl.

DEN

Denver Intl.

$263 Roundtrip, found 1 day ago

$263

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Aug 2 from Philadelphia Intl. to Denver Intl., returning Fri, Aug 8, priced at $263 found 1 day ago

Mon, Aug 11 - Sun, Aug 17

PHL

Philadelphia Intl.

DEN

Denver Intl.

$280 Roundtrip, found 15 hours ago

$280

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Mon, Aug 11 from Philadelphia Intl. to Denver Intl., returning Sun, Aug 17, priced at $280 found 15 hours ago

Sat, Aug 2 - Fri, Aug 8

TTN

Mercer

DEN

Denver Intl.

$282 Roundtrip, found 1 day ago

$282

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 2 from Mercer to Denver Intl., returning Fri, Aug 8, priced at $282 found 1 day ago

Mon, Aug 11 - Sun, Aug 17

PHL

Philadelphia Intl.

DEN

Denver Intl.

$402 Roundtrip, found 15 hours ago

$402

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Aug 11 from Philadelphia Intl. to Denver Intl., returning Sun, Aug 17, priced at $402 found 15 hours ago

Mon, Aug 11 - Sun, Aug 17

PHL

Philadelphia Intl.

DEN

Denver Intl.

$459 Roundtrip, found 15 hours ago

$459

Roundtrip

found 15 hours ago

Select JetBlue Airways flight, departing Mon, Aug 11 from Philadelphia Intl. to Denver Intl., returning Sun, Aug 17, priced at $459 found 15 hours ago