Flights from Philadelphia to North Washington

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.

Wed, Jun 25 - Mon, Jun 30

PHL

Philadelphia Intl.

DEN

Denver Intl.

$146 Roundtrip, found 4 days ago

$146

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Jun 25 from Philadelphia Intl. to Denver Intl., returning Mon, Jun 30, priced at $146 found 4 days ago

Sun, Aug 3 - Thu, Aug 7

PHL

Philadelphia Intl.

DEN

Denver Intl.

$156 Roundtrip, found 4 days ago

$156

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Aug 3 from Philadelphia Intl. to Denver Intl., returning Thu, Aug 7, priced at $156 found 4 days ago

Thu, Oct 16 - Wed, Oct 22

PHL

Philadelphia Intl.

DEN

Denver Intl.

$167 Roundtrip, found 5 days ago

$167

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Philadelphia Intl. to Denver Intl., returning Wed, Oct 22, priced at $167 found 5 days ago

Sun, Jun 22 - Mon, Jun 30

PHL

Philadelphia Intl.

DEN

Denver Intl.

$175 Roundtrip, found 4 days ago

$175

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Jun 22 from Philadelphia Intl. to Denver Intl., returning Mon, Jun 30, priced at $175 found 4 days ago

Sun, Jun 1 - Fri, Jun 6

PHL

Philadelphia Intl.

DEN

Denver Intl.

$183 Roundtrip, found 2 days ago

$183

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jun 1 from Philadelphia Intl. to Denver Intl., returning Fri, Jun 6, priced at $183 found 2 days ago

Tue, Jun 10 - Sat, Jun 21

PHL

Philadelphia Intl.

DEN

Denver Intl.

$184 Roundtrip, found 2 days ago

$184

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Jun 10 from Philadelphia Intl. to Denver Intl., returning Sat, Jun 21, priced at $184 found 2 days ago

Tue, Aug 5 - Wed, Aug 13

PHL

Philadelphia Intl.

DEN

Denver Intl.

$185 Roundtrip, found 2 days ago

$185

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Philadelphia Intl. to Denver Intl., returning Wed, Aug 13, priced at $185 found 2 days ago

Thu, Oct 16 - Thu, Oct 23

PHL

Philadelphia Intl.

DEN

Denver Intl.

$186 Roundtrip, found 5 days ago

$186

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Philadelphia Intl. to Denver Intl., returning Thu, Oct 23, priced at $186 found 5 days ago

Tue, Aug 5 - Mon, Aug 11

PHL

Philadelphia Intl.

DEN

Denver Intl.

$187 Roundtrip, found 2 days ago

$187

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Philadelphia Intl. to Denver Intl., returning Mon, Aug 11, priced at $187 found 2 days ago

Wed, Oct 15 - Sat, Oct 18

PHL

Philadelphia Intl.

DEN

Denver Intl.

$189 Roundtrip, found 2 days ago

$189

Roundtrip

found 2 days ago

Select United flight, departing Wed, Oct 15 from Philadelphia Intl. to Denver Intl., returning Sat, Oct 18, priced at $189 found 2 days ago

Wed, Oct 15 - Sat, Oct 18

PHL

Philadelphia Intl.

DEN

Denver Intl.

$189 Roundtrip, found 2 days ago

$189

Roundtrip

found 2 days ago

Select United flight, departing Wed, Oct 15 from Philadelphia Intl. to Denver Intl., returning Sat, Oct 18, priced at $189 found 2 days ago

Tue, Aug 5 - Sun, Aug 10

PHL

Philadelphia Intl.

DEN

Denver Intl.

$190 Roundtrip, found 2 days ago

$190

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Philadelphia Intl. to Denver Intl., returning Sun, Aug 10, priced at $190 found 2 days ago

Wed, Oct 15 - Sat, Oct 18

PHL

Philadelphia Intl.

DEN

Denver Intl.

$193 Roundtrip, found 2 days ago

$193

Roundtrip

found 2 days ago

Select United flight, departing Wed, Oct 15 from Philadelphia Intl. to Denver Intl., returning Sat, Oct 18, priced at $193 found 2 days ago

Sun, Jun 22 - Thu, Jun 26

PHL

Philadelphia Intl.

DEN

Denver Intl.

$195 Roundtrip, found 4 days ago

$195

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Jun 22 from Philadelphia Intl. to Denver Intl., returning Thu, Jun 26, priced at $195 found 4 days ago

Wed, Aug 6 - Mon, Aug 11

PHL

Philadelphia Intl.

DEN

Denver Intl.

$199 Roundtrip, found 2 days ago

$199

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Philadelphia Intl. to Denver Intl., returning Mon, Aug 11, priced at $199 found 2 days ago

Wed, Oct 15 - Sat, Oct 18

PHL

Philadelphia Intl.

DEN

Denver Intl.

$213 Roundtrip, found 2 days ago

$213

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Oct 15 from Philadelphia Intl. to Denver Intl., returning Sat, Oct 18, priced at $213 found 2 days ago

Wed, Oct 15 - Wed, Oct 15

PHL

Philadelphia Intl.

DEN

Denver Intl.

$251 Roundtrip, found 2 days ago

$251

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Oct 15 from Philadelphia Intl. to Denver Intl., returning Wed, Oct 15, priced at $251 found 2 days ago

Tue, Oct 14 - Mon, Oct 20

PHL

Philadelphia Intl.

DEN

Denver Intl.

$256 Roundtrip, found 2 days ago

$256

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Tue, Oct 14 from Philadelphia Intl. to Denver Intl., returning Mon, Oct 20, priced at $256 found 2 days ago

Mon, Jun 9 - Mon, Jun 16

TTN

Mercer

DEN

Denver Intl.

$259 Roundtrip, found 23 hours ago

$259

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Mon, Jun 9 from Mercer to Denver Intl., returning Mon, Jun 16, priced at $259 found 23 hours ago

Sat, Aug 16 - Tue, Aug 26

ABE

Lehigh Valley Intl.

DEN

Denver Intl.

$267 Roundtrip, found 1 day ago

$267

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Aug 16 from Lehigh Valley Intl. to Denver Intl., returning Tue, Aug 26, priced at $267 found 1 day ago