Cheapest return flights from St. Louis to Paris in September from $764

AirHint found the following cheapest return flights from St. Louis (STL) to Paris (ORY) in September 2025 (see full year).

Return flights

27 Sep - 30 Sep Frontier Airlines
20 Sep - 27 Sep Frontier Airlines
17 Sep - 11 Oct Alaska Airlines

Also check the deals for one-way flights from St. Louis to Paris 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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