Cheapest return flights from Oklahoma City to Denver in December from $48

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

Return flights

22 Dec - 29 Dec Frontier Airlines direct
29 Dec - 02 Jan Frontier Airlines direct
22 Dec - 26 Dec Frontier Airlines direct
01 Dec - 04 Dec Frontier Airlines direct
02 Dec - 04 Dec Frontier Airlines direct
23 Dec - 30 Dec Frontier Airlines direct
26 Dec - 30 Dec Frontier Airlines direct
12 Dec - 15 Dec Frontier Airlines direct
05 Dec - 07 Dec Frontier Airlines direct
23 Dec - 25 Dec United direct
27 Dec - 31 Dec Southwest Airlines

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

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