Denver to Philadelphia $138 Round-Trip, Nonstop, on Southwest

Fly nonstop from Denver to Philly for $138 round-trip on Southwest.

Searching Southwest, we found seats departing DEN on Tuesday, October 25, returning from PHL on Monday, October 31.

Other dates are available for travel from October 18 through March 1, excluding peak holiday periods.

See our fare details for booking info. 

Need a room in Philly? Here's what's available for the above dates on Hotelwatchdog.