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

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Philadelphia (PHL) to Seattle (SEA)
 Depart 14 May 14
 Return 21 May 14

Price subject to availability

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  • Price
  • Dep date
  1 more CheapOair.com flights available on this route
$320   Dep 14 May 14 - Rtn 21 May 14
Philadelphia to Denver International
PHL to DEN CheapOair.com
Philadelphia (PHL) to Denver International (DEN)
 Depart 21 May 14
 Return 28 May 14

Price subject to availability

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  • Price
  • Dep date
  6 more Flightnetwork flights available on this route
$350   Dep 21 May 14 - Rtn 28 May 14
Philadelphia to Denver International
PHL to DEN Flightnetwork
$356   Dep 21 May 14 - Rtn 28 May 14
Philadelphia to Denver International
PHL to DEN Flightnetwork
$377   Dep 21 May 14 - Rtn 28 May 14
Philadelphia to Denver International
PHL to DEN Flightnetwork
$410   Dep 21 May 14 - Rtn 28 May 14
Philadelphia to Denver International
PHL to DEN Flightnetwork
$522   Dep 21 May 14 - Rtn 28 May 14
Philadelphia to Denver International
PHL to DEN Flightnetwork
$1,053   Dep 21 May 14 - Rtn 28 May 14
Philadelphia to Denver International
PHL to DEN Flightnetwork
Philadelphia (PHL) to Portland (PDX)
 Depart 14 May 14
 Return 21 May 14

Price subject to availability

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Philadelphia (PHL) to Denver International (DEN)
 Depart 07 May 14
 Return 14 May 14

Flying with Spirit Airlines

Price subject to availability

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  • Price
  • Dep date
  15 more Expedia flights available on this route
$340   Dep 18 Jun 14 - Rtn 25 Jun 14
Philadelphia to Denver International
PHL to DEN Expedia
$360   Dep 14 May 14 - Rtn 21 May 14
Philadelphia to Denver International
PHL to DEN Expedia
$366   Dep 14 May 14 - Rtn 21 May 14
Philadelphia to Seattle
PHL to SEA Expedia
$374   Dep 14 May 14 - Rtn 21 May 14
Philadelphia to Denver International
PHL to DEN Expedia
$393   Dep 14 May 14 - Rtn 21 May 14
Philadelphia to Denver International
PHL to DEN Expedia
$400   Dep 18 Jun 14 - Rtn 25 Jun 14
Philadelphia to Denver International
PHL to DEN Expedia
$403   Dep 07 May 14 - Rtn 14 May 14
Philadelphia to Denver International
PHL to DEN Expedia
$406   Dep 07 May 14 - Rtn 14 May 14
Philadelphia to Seattle
PHL to SEA Expedia
$410   Dep 25 Jun 14 - Rtn 02 Jul 14
Philadelphia to Denver International
PHL to DEN Expedia
$412   Dep 07 May 14 - Rtn 14 May 14
Philadelphia to Denver International
PHL to DEN Expedia
$434   Dep 25 Jun 14 - Rtn 02 Jul 14
Philadelphia to Seattle
PHL to SEA Expedia
$440   Dep 25 Jun 14 - Rtn 02 Jul 14
Philadelphia to Denver International
PHL to DEN Expedia
$442   Dep 18 Jun 14 - Rtn 25 Jun 14
Philadelphia to Denver International
PHL to DEN Expedia
$468   Dep 14 May 14 - Rtn 21 May 14
Philadelphia to Seattle
PHL to SEA Expedia
$477   Dep 18 Jun 14 - Rtn 25 Jun 14
Philadelphia to Seattle
PHL to SEA Expedia
Pittsburgh (PIT) to Denver International (DEN)
 Depart 29 Apr 14
 Return 05 May 14

Flying with US Airways

Price subject to availability

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Philadelphia (PHL) to Seattle (SEA)
 Depart 06 May 14
 Return 13 May 14

Price subject to availability

 
 
Philadelphia (PHL) to Colorado Springs (COS)
 Depart 02 Jul 14
 Return 09 Jul 14

Flying with United Airlines

Price subject to availability

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  • Dep date
  15 more momondo.com flights available on this route
$409   Dep 23 Jul 14 - Rtn 30 Jul 14
Pittsburgh to Colorado Springs
PIT to COS momondo.com
$419   Dep 09 Jul 14 - Rtn 16 Jul 14
Erie to Denver International
ERI to DEN momondo.com
$430   Dep 02 Jul 14 - Rtn 09 Jul 14
Philadelphia to Colorado Springs
PHL to COS momondo.com
$433   Dep 25 Jun 14 - Rtn 02 Jul 14
Pittsburgh to Colorado Springs
PIT to COS momondo.com
$465   Dep 25 Jun 14 - Rtn 02 Jul 14
Pittsburgh to Colorado Springs
PIT to COS momondo.com
$495   Dep 25 Jun 14 - Rtn 02 Jul 14
Pittsburgh to Bozeman
PIT to BZN momondo.com
$495   Dep 25 Jun 14 - Rtn 02 Jul 14
Pittsburgh to Bozeman
PIT to BZN momondo.com
$495   Dep 18 Jun 14 - Rtn 25 Jun 14
Allentown to Kalispell
ABE to FCA momondo.com
$516   Dep 09 Jul 14 - Rtn 16 Jul 14
Erie to Denver International
ERI to DEN momondo.com
$541   Dep 23 Jul 14 - Rtn 30 Jul 14
Pittsburgh to Colorado Springs
PIT to COS momondo.com
$545   Dep 09 Jul 14 - Rtn 16 Jul 14
Erie to Denver International
ERI to DEN momondo.com
$586   Dep 23 Jul 14 - Rtn 30 Jul 14
Philadelphia to Spokane
PHL to GEG momondo.com
$592   Dep 18 Jun 14 - Rtn 25 Jun 14
Pittsburgh to Spokane
PIT to GEG momondo.com
$594   Dep 09 Jul 14 - Rtn 16 Jul 14
Philadelphia to Spokane
PHL to GEG momondo.com
$601   Dep 02 Jul 14 - Rtn 09 Jul 14
Wilkes-Barre to Missoula
AVP to MSO momondo.com
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