DEN - Denver International Airport, Denver (CO)
COS - Colorado Springs Airport, Colorado Springs (CO)
ASE - Aspen-Pitkin County Airport, Aspen (CO)
EGE - Eagle County Regional Airport, Vail/Eagle (CO)
GJT - Grand Junction Regional Airport (Walker), Grand Junction (CO)
DRO - Durango-La Plata County Airport, Durango (CO)
HDN - Yampa Valley Airport, Hayden (CO)
MTJ - Montrose Regional Airport, Montrose (CO)
GUC - Gunnison-Crested Butte Regional, Gunnison County (CO)
TEX - Telluride Regional Airport, Telluride (CO)
FNL - Fort Collins-Loveland Municipal Airport, Fort Collins (CO)
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