Cheapest return flights from St. Louis to Athens in May from $624

Best time to book flights for St. Louis (STL) to Athens (ATH) flights at AirHint

AirHint found the following cheapest return flights from St. Louis (STL) to Athens (ATH) in May 2025 (see full year).

Return flights

10 May - 16 May Frontier Airlines
06 May - 13 May United
10 May - 17 May Frontier Airlines
11 May - 17 May Air Canada
02 May - 09 May United
12 May - 19 May United
15 May - 22 May United
04 May - 11 May United
09 May - 16 May United
18 May - 25 May United
19 May - 01 Jun Air Canada
20 May - 01 Jun Air Canada
21 May - 01 Jun Air Canada
22 May - 01 Jun Air Canada
23 May - 01 Jun Air Canada
27 May - 03 Jun United
25 May - 08 Jun United
23 May - 07 Jun Air Canada
30 May - 06 Jun United

Also check the deals for one-way flights from St. Louis to Athens in May.

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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