Cheapest return flights from St. Louis to Athens in May from $776

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

06 May - 15 May Frontier Airlines
13 May - 20 May Air Canada
19 May - 22 May Frontier Airlines
23 May - 07 Jun Frontier Airlines
25 May - 08 Jun Frontier Airlines
16 May - 23 May United
18 May - 25 May United
20 May - 27 May United
26 May - 02 Jun United
22 May - 29 May United
24 May - 31 May 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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