Flights from Pennsylvania (Pennsylvania) to North West USA (North West USA)

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We compare hundreds of flights from Pennsylvania to North West USA from a range of airlines and travel agents to get you the best deals. Find cheap flights along this route.
Philadelphia (PHL) to Denver International (DEN)
 Depart 02 Oct 16
 Return 04 Oct 16

Flying with American Airlines

Price subject to availability

   View more dates
 
  • Price
  • Dep date
  15 more CheapOair.com flights available on this route
$146   Dep 09 Nov 16 - Rtn 15 Nov 16
Pittsburgh to Denver International
PIT to DEN CheapOair.com
$247   Dep 08 Oct 16 - Rtn 15 Oct 16
Pittsburgh to Salt Lake City
PIT to SLC CheapOair.com
$255   Dep 26 Oct 16 - Rtn 29 Oct 16
Philadelphia to Salt Lake City
PHL to SLC CheapOair.com
$274   Dep 25 Oct 16 - Rtn 28 Oct 16
Philadelphia to Portland
PHL to PDX CheapOair.com
$276   Dep 20 Nov 16 - Rtn 25 Nov 16
Allentown to Denver International
ABE to DEN CheapOair.com
$283   Dep 04 Nov 16 - Rtn 07 Nov 16
Pittsburgh to Colorado Springs
PIT to COS CheapOair.com
$289   Dep 22 Oct 16 - Rtn 29 Oct 16
Wilkes-Barre to Denver International
AVP to DEN CheapOair.com
$302   Dep 05 Oct 16 - Rtn 18 Oct 16
Pittsburgh to Portland
PIT to PDX CheapOair.com
$305   Dep 09 Nov 16 - Rtn 16 Nov 16
Philadelphia to Colorado Springs
PHL to COS CheapOair.com
$307   Dep 22 Oct 16 - Rtn 29 Oct 16
Philadelphia to Seattle
PHL to SEA CheapOair.com
$314   Dep 08 Dec 16 - Rtn 11 Dec 16
Allentown to Seattle
ABE to SEA CheapOair.com
$339   Dep 15 Oct 16 - Rtn 25 Oct 16
State College to Denver International
SCE to DEN CheapOair.com
$341   Dep 08 Oct 16 - Rtn 15 Oct 16
Pittsburgh to Seattle
PIT to SEA CheapOair.com
$341   Dep 14 Oct 16 - Rtn 17 Oct 16
Philadelphia to Missoula
PHL to MSO CheapOair.com
$367   Dep 22 Oct 16 - Rtn 25 Oct 16
Pittsburgh to Jackson
PIT to JAC CheapOair.com
Pittsburgh (PIT) to Denver International (DEN)
 Depart 19 Oct 16
 Return 26 Oct 16

Price subject to availability

   View more dates
 
  • Price
  • Dep date
  15 more CheapAir.com flights available on this route
$146   Dep 26 Oct 16 - Rtn 02 Nov 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$156   Dep 12 Oct 16 - Rtn 19 Oct 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$156   Dep 31 Oct 16 - Rtn 07 Nov 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$166   Dep 14 Oct 16 - Rtn 21 Oct 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$166   Dep 15 Oct 16 - Rtn 22 Oct 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$166   Dep 17 Oct 16 - Rtn 24 Oct 16
Philadelphia to Denver International
PHL to DEN CheapAir.com
$166   Dep 21 Oct 16 - Rtn 28 Oct 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$166   Dep 22 Oct 16 - Rtn 29 Oct 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$166   Dep 24 Oct 16 - Rtn 31 Oct 16
Philadelphia to Denver International
PHL to DEN CheapAir.com
$166   Dep 28 Oct 16 - Rtn 04 Nov 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$166   Dep 29 Oct 16 - Rtn 05 Nov 16
Pittsburgh to Denver International
PIT to DEN CheapAir.com
$176   Dep 10 Oct 16 - Rtn 17 Oct 16
Philadelphia to Denver International
PHL to DEN CheapAir.com
$241   Dep 22 Oct 16 - Rtn 29 Oct 16
Philadelphia to Salt Lake City
PHL to SLC CheapAir.com
$261   Dep 26 Oct 16 - Rtn 02 Nov 16
Philadelphia to Portland
PHL to PDX CheapAir.com
$261   Dep 29 Oct 16 - Rtn 05 Nov 16
Philadelphia to Portland
PHL to PDX CheapAir.com
Pittsburgh (PIT) to Denver International (DEN)
 Depart 09 Nov 16
 Return 15 Nov 16

Flying with Frontier Airlines

Price subject to availability

   View more dates
 
  • Price
  • Dep date
  15 more OneTravel.com flights available on this route
$146   Dep 12 Nov 16 - Rtn 14 Nov 16
Philadelphia to Denver International
PHL to DEN OneTravel.com
$247   Dep 08 Oct 16 - Rtn 15 Oct 16
Pittsburgh to Salt Lake City
PIT to SLC OneTravel.com
$254   Dep 25 Oct 16 - Rtn 29 Oct 16
Philadelphia to Salt Lake City
PHL to SLC OneTravel.com
$291   Dep 13 Oct 16 - Rtn 18 Oct 16
Wilkes-Barre to Denver International
AVP to DEN OneTravel.com
$293   Dep 21 Nov 16 - Rtn 25 Nov 16
Pittsburgh to Colorado Springs
PIT to COS OneTravel.com
$307   Dep 22 Oct 16 - Rtn 29 Oct 16
Philadelphia to Seattle
PHL to SEA OneTravel.com
$313   Dep 04 Nov 16 - Rtn 07 Nov 16
Philadelphia to Portland
PHL to PDX OneTravel.com
$317   Dep 09 Nov 16 - Rtn 12 Nov 16
Pittsburgh to Portland
PIT to PDX OneTravel.com
$336   Dep 11 Oct 16 - Rtn 02 Nov 16
Harrisburg to Denver International
MDT to DEN OneTravel.com
$341   Dep 08 Oct 16 - Rtn 15 Oct 16
Pittsburgh to Seattle
PIT to SEA OneTravel.com
$341   Dep 14 Oct 16 - Rtn 21 Oct 16
Philadelphia to Missoula
PHL to MSO OneTravel.com
$345   Dep 30 Oct 16 - Rtn 12 Nov 16
Philadelphia to Colorado Springs
PHL to COS OneTravel.com
$349   Dep 26 Jan 17 - Rtn 30 Jan 17
Allentown to Portland
ABE to PDX OneTravel.com
$376   Dep 04 Nov 16 - Rtn 06 Nov 16
Allentown to Seattle
ABE to SEA OneTravel.com
$382   Dep 11 Oct 16 - Rtn 04 Nov 16
Williamsport to Seattle
IPT to SEA OneTravel.com
Philadelphia (PHL) to Denver International (DEN)
 Depart 19 Oct 16
 Return 26 Oct 16

Price subject to availability

   View more dates
 
  • Price
  • Dep date
  13 more Smartfares.com flights available on this route
$176   Dep 20 Oct 16 - Rtn 23 Oct 16
Philadelphia to Denver International
PHL to DEN Smartfares.com
$288   Dep 07 Nov 16 - Rtn 12 Nov 16
Pittsburgh to Salt Lake City
PIT to SLC Smartfares.com
$365   Dep 26 Oct 16 - Rtn 31 Oct 16
Philadelphia to Seattle
PHL to SEA Smartfares.com
$368   Dep 17 Oct 16 - Rtn 23 Oct 16
Philadelphia to Salt Lake City
PHL to SLC Smartfares.com
$384   Dep 06 Oct 16 - Rtn 10 Oct 16
Philadelphia to Denver International
PHL to DEN Smartfares.com
$408   Dep 16 Oct 16 - Rtn 23 Oct 16
Philadelphia to Salt Lake City
PHL to SLC Smartfares.com
$455   Dep 04 Oct 16 - Rtn 11 Oct 16
Philadelphia to Seattle
PHL to SEA Smartfares.com
$503   Dep 08 Dec 16 - Rtn 11 Dec 16
Philadelphia to Denver International
PHL to DEN Smartfares.com
$583   Dep 17 Dec 16 - Rtn 30 Dec 16
Philadelphia to Seattle
PHL to SEA Smartfares.com
$594   Dep 16 Dec 16 - Rtn 30 Dec 16
Philadelphia to Seattle
PHL to SEA Smartfares.com
$751   Dep 18 Nov 16 - Rtn 21 Nov 16
Pittsburgh to Seattle
PIT to SEA Smartfares.com
$775   Dep 26 Jan 17 - Rtn 30 Jan 17
Philadelphia to Portland
PHL to PDX Smartfares.com
$1,631   Dep 28 Dec 16 - Rtn 02 Jan 17
Philadelphia to Salt Lake City
PHL to SLC Smartfares.com
Pittsburgh (PIT) to Denver International (DEN)
 Depart 10 Jan 17
 Return 16 Jan 17

Flying with Frontier Airlines

Price subject to availability

   View more dates
 
  • Price
  • Dep date
  15 more momondo.com flights available on this route
$215   Dep 09 Jan 17 - Rtn 16 Jan 17
Pittsburgh to Denver International
PIT to DEN momondo.com
$218   Dep 12 Dec 16 - Rtn 19 Dec 16
Pittsburgh to Denver International
PIT to DEN momondo.com
$219   Dep 08 Dec 16 - Rtn 11 Dec 16
Philadelphia to Denver International
PHL to DEN momondo.com
$234   Dep 09 Dec 16 - Rtn 16 Dec 16
Pittsburgh to Denver International
PIT to DEN momondo.com
$287   Dep 23 Jan 17 - Rtn 30 Jan 17
Philadelphia to Salt Lake City
PHL to SLC momondo.com
$308   Dep 24 Nov 16 - Rtn 27 Nov 16
Philadelphia to Denver International
PHL to DEN momondo.com
$340   Dep 16 Nov 16 - Rtn 22 Nov 16
Pittsburgh to Portland
PIT to PDX momondo.com
$379   Dep 30 Oct 16 - Rtn 02 Nov 16
Philadelphia to Seattle
PHL to SEA momondo.com
$393   Dep 14 Mar 17 - Rtn 21 Mar 17
Pittsburgh to Denver International
PIT to DEN momondo.com
$412   Dep 30 Dec 16 - Rtn 03 Jan 17
Philadelphia to Denver International
PHL to DEN momondo.com
$419   Dep 02 Jan 17 - Rtn 09 Jan 17
Pittsburgh to Denver International
PIT to DEN momondo.com
$435   Dep 25 Dec 16 - Rtn 29 Dec 16
Philadelphia to Seattle
PHL to SEA momondo.com
$476   Dep 26 Dec 16 - Rtn 30 Dec 16
Philadelphia to Denver International
PHL to DEN momondo.com
$495   Dep 24 Dec 16 - Rtn 27 Dec 16
Philadelphia to Portland
PHL to PDX momondo.com
$496   Dep 04 Jan 17 - Rtn 11 Jan 17
Philadelphia to Jackson
PHL to JAC momondo.com
Pittsburgh (PIT) to Denver International (DEN)
 Depart 09 Dec 16
 Return 13 Dec 16

Flying with Frontier Airlines

Price subject to availability

   View more dates
 
  • Price
  • Dep date
  15 more Cheapflights flights available on this route
$245   Dep 07 Oct 16 - Rtn 10 Oct 16
Philadelphia to Denver International
PHL to DEN Cheapflights
$289   Dep 12 Oct 16 - Rtn 17 Oct 16
Pittsburgh to Salt Lake City
PIT to SLC Cheapflights
$289   Dep 24 Nov 16 - Rtn 28 Nov 16
Philadelphia to Denver International
PHL to DEN Cheapflights
$293   Dep 06 Oct 16 - Rtn 10 Oct 16
Philadelphia to Denver International
PHL to DEN Cheapflights
$324   Dep 10 Oct 16 - Rtn 16 Oct 16
Pittsburgh to Seattle
PIT to SEA Cheapflights
$338   Dep 16 Nov 16 - Rtn 22 Nov 16
Pittsburgh to Portland
PIT to PDX Cheapflights
$342   Dep 10 Oct 16 - Rtn 16 Oct 16
Philadelphia to Salt Lake City
PHL to SLC Cheapflights
$355   Dep 25 Nov 16 - Rtn 28 Nov 16
Philadelphia to Denver International
PHL to DEN Cheapflights
$367   Dep 18 Nov 16 - Rtn 23 Nov 16
Philadelphia to Portland
PHL to PDX Cheapflights
$416   Dep 18 Nov 16 - Rtn 22 Nov 16
Philadelphia to Portland
PHL to PDX Cheapflights
$421   Dep 07 Oct 16 - Rtn 09 Oct 16
Pittsburgh to Seattle
PIT to SEA Cheapflights
$431   Dep 18 Nov 16 - Rtn 23 Nov 16
Philadelphia to Seattle
PHL to SEA Cheapflights
$439   Dep 23 Dec 16 - Rtn 02 Jan 17
Philadelphia to Denver International
PHL to DEN Cheapflights
$449   Dep 07 Oct 16 - Rtn 09 Oct 16
Philadelphia to Seattle
PHL to SEA Cheapflights
$472   Dep 07 Dec 16 - Rtn 13 Dec 16
Philadelphia to Spokane
PHL to GEG Cheapflights
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