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Denver skyline with Rocky Mountains
DEN
Denver
Louisville Kentucky skyline
SDF
Louisville

Denver → Louisville

Frontier Airlines · Round Trip · Nonstop

Save $140 (30% off)
Compared to the typical price of $469
$329$469

per person · round trip

Book This Deal

Flight Details

Cabin
Economy
Departs
Apr 17, 2026
Returns
Apr 20, 2026

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