AirHint found the following cheapest one-way flights from Kansas City (MCI) to Denver (DEN) in January 2026 (see full year).
One-Way flights
| 08 Jan | Frontier Airlines | direct | |
| 09 Jan | Frontier Airlines | direct | |
| 11 Jan | Frontier Airlines | direct | |
| 12 Jan | Frontier Airlines | direct | |
| 14 Jan | Spirit Airlines | ||
| 14 Jan | Southwest Airlines | direct |
Also check the deals for return flights from Kansas City to Denver in January.
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