Cheapest return flights from St. Louis (STL) to Athens (ATH), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
09 Sep 14 Oct Frontier Airlines
09 Sep 13 Oct Frontier Airlines
09 Sep 08 Oct Frontier Airlines
09 Sep 06 Oct Frontier Airlines
09 Sep 12 Oct Frontier Airlines
09 Sep 15 Oct Frontier Airlines
09 Sep 07 Oct Frontier Airlines
09 Sep 11 Oct Frontier Airlines
13 Sep 04 Oct Frontier Airlines
09 Sep 09 Oct Frontier Airlines
11 Sep 19 Sep Air Canada
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deals for one-way flights from St. Louis to Athens in September.

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Updated Jun 28, 2026.

About these fares

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