Cheapest return flights from Kansas City to Denver in September from 243€

AirHint found the following cheapest return flights from Kansas City (MCI) to Denver (DEN) in September 2026 (see full year).

Return flights

10 Sep - 13 Sep Southwest Airlines direct
24 Sep - 28 Sep United direct
25 Sep - 28 Sep United direct

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

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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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