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

Return flights

15 Sep - 23 Sep	Delta
07 Sep - 23 Sep	Delta
26 Sep - 02 Oct	Scandinavian Airlines
20 Sep - 30 Sep	Air France
15 Sep - 29 Sep	Air France
13 Sep - 20 Sep	KLM
03 Sep - 12 Sep	Air France
24 Sep - 03 Oct	Air France
24 Sep - 14 Oct	Air France
20 Sep - 29 Sep	Air France
14 Sep - 21 Sep	Air France
01 Sep - 07 Sep	Virgin Atlantic
05 Sep - 19 Sep	Air France
27 Sep - 03 Oct	Air France
28 Sep - 04 Oct	Delta

Also check the deals for one-way flights from Dallas 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 Dallas to Athens in September from 785€

Return flights