Cheapest return flights from St. Louis to Dallas-Fort Worth in September from $147

AirHint found the following cheapest return flights from St. Louis (STL) to Dallas-Fort Worth (DFW) in September 2025 (see full year).

Return flights

12 Sep - 14 Sep Frontier Airlines
12 Sep - 14 Sep American Airlines direct

Also check the deals for one-way flights from St. Louis to Dallas-Fort Worth 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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