Cheap flights from Philadelphia to Southern Rocky Mountains

View AU$441 flight on Fri, 19 Dec. 2025Opens in a new window

Popular airlines from Philadelphia to Southern Rocky Mountains

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Alaska Airlines

    Alaska Airlines

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Cheap Flights from Philadelphia (ILG) to Southern Rocky Mountains (DEN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 24 Nov. - Mon, 1 Dec.
PHL
Philadelphia
MTJ
Montrose
AU$1,134 Return, found 6 days ago
AU$1,134
Return
found 6 days ago
Select United flight, departing Mon, 24 Nov. from Philadelphia to Montrose, returning Mon, 1 Dec., priced at AU$1,134 found 6 days ago
United
Mon, 24 Nov. - Mon, 1 Dec.
PHL
Philadelphia
MTJ
Montrose
AU$1,142 Return, found 6 days ago
AU$1,142
Return
found 6 days ago
Select United flight, departing Mon, 24 Nov. from Philadelphia to Montrose, returning Mon, 1 Dec., priced at AU$1,142 found 6 days ago
United
Fri, 19 Dec. - Sun, 4 Jan.
PHL
Philadelphia
MTJ
Montrose
AU$1,197 Return, found 6 days ago
AU$1,197
Return
found 6 days ago
Select United flight, departing Fri, 19 Dec. from Philadelphia to Montrose, returning Sun, 4 Jan., priced at AU$1,197 found 6 days ago
United
Mon, 24 Nov. - Mon, 1 Dec.
PHL
Philadelphia
MTJ
Montrose
AU$1,216 Return, found 6 days ago
AU$1,216
Return
found 6 days ago
Select United flight, departing Mon, 24 Nov. from Philadelphia to Montrose, returning Mon, 1 Dec., priced at AU$1,216 found 6 days ago
United
Mon, 24 Nov. - Mon, 1 Dec.
PHL
Philadelphia
MTJ
Montrose
AU$1,224 Return, found 6 days ago
AU$1,224
Return
found 6 days ago
Select United flight, departing Mon, 24 Nov. from Philadelphia to Montrose, returning Mon, 1 Dec., priced at AU$1,224 found 6 days ago
American Airlines
Mon, 24 Nov. - Mon, 1 Dec.
PHL
Philadelphia
MTJ
Montrose
AU$1,258 Return, found 6 days ago
AU$1,258
Return
found 6 days ago
Select American Airlines flight, departing Mon, 24 Nov. from Philadelphia to Montrose, returning Mon, 1 Dec., priced at AU$1,258 found 6 days ago
United
Fri, 19 Dec. - Sun, 4 Jan.
PHL
Philadelphia
MTJ
Montrose
AU$1,287 Return, found 6 days ago
AU$1,287
Return
found 6 days ago
Select United flight, departing Fri, 19 Dec. from Philadelphia to Montrose, returning Sun, 4 Jan., priced at AU$1,287 found 6 days ago

Find the cheapest month to fly from Philadelphia (PHL) to Jackson (JAC)

September is typically the cheapest month to fly

From AU$369 - AU$1,176 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.