 Three general aviation airports serve the Denver area . Rocky Mountain Metropolitan Airport ( <unk> ) is 13 @.@ 7 miles ( 22 km ) north @-@ northwest , Centennial Airport ( <unk> ) is 13 @.@ 7 miles ( 22 km ) south @-@ southeast , and Front Range Airport ( <unk> ) is located 23 @.@ 7 miles ( 38 km ) east of the state capitol . 
