Cheapest return flights from Kansas City to Denver in December from $66

AirHint found the following cheapest return flights from Kansas City (MCI) to Denver (DEN) in December 2025 (see full year).

Return flights

05 Dec - 08 Dec Frontier Airlines direct
14 Dec - 15 Dec Frontier Airlines direct
20 Dec - 21 Dec Frontier Airlines direct
24 Dec - 31 Dec Frontier Airlines direct
05 Dec - 07 Dec Frontier Airlines direct
31 Dec - 04 Jan Frontier Airlines direct
19 Dec - 21 Dec Frontier Airlines direct
24 Dec - 27 Dec Frontier Airlines direct
23 Dec - 27 Dec Frontier Airlines direct
21 Dec - 28 Dec Frontier Airlines direct
30 Dec - 04 Jan Frontier Airlines direct
30 Dec - 03 Jan Frontier Airlines direct
20 Dec - 22 Dec Frontier Airlines direct
21 Dec - 18 Jan Southwest Airlines

Also check the deals for one-way flights from Kansas City to Denver in December.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Denver

Cheap car rent in Denver

Feel free to contact us with any feedback or request another flight research.