Cheapest return flights from Kansas City to Denver in September from 180€

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

Return flights

25 Sep - 02 Oct Frontier Airlines direct
26 Sep - 29 Sep Frontier Airlines direct
28 Sep - 29 Sep Frontier Airlines direct

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

Skyscanner

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.

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