Cheap Flights Denver (DEN) to Phoenix (PHX)

Frontier logo Frontier Airlines
DEN
 
    Nonstop
    PHX
    Dates: Dec 15 - Mar 6

    From $39

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    Frontier logo Frontier Airlines
    DEN
     
      Nonstop
      PHX
      Dates: Dec 14 - Mar 13

      From $49

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