Cheapest one-way flights from Tulsa to Denver in September from $237

AirHint found the following cheapest one-way flights from Tulsa (TUL) to Denver (DEN) in September 2025 (see full year).

One-Way flights

26 Sep Allegiant Air
26 Sep Southwest Airlines direct
25 Sep Southwest Airlines direct

Also check the deals for return flights from Tulsa 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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