AirHint found the following cheapest return flights from Charlotte (CLT) to Athens (ATH) in September 2025 (see full year).

Return flights

27 Sep - 01 Oct	Spirit Airlines
02 Sep - 19 Sep	Spirit Airlines
09 Sep - 23 Sep	Spirit Airlines
08 Sep - 20 Sep	Spirit Airlines
23 Sep - 07 Oct	Spirit Airlines
01 Sep - 08 Sep	Spirit Airlines
15 Sep - 22 Sep	Spirit Airlines
29 Sep - 06 Oct	Spirit Airlines
30 Sep - 07 Oct	Spirit Airlines
09 Sep - 22 Sep	Spirit Airlines
20 Sep - 04 Oct	Spirit Airlines
14 Sep - 21 Sep	Spirit Airlines
25 Sep - 10 Oct	United

Also check the deals for one-way flights from Charlotte to Athens in September.

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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Cheapest return flights from Charlotte to Athens in September from $525

Return flights