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

Return flights

17 Sep - 26 Sep	United
19 Sep - 24 Sep	United
22 Sep - 24 Sep	United
19 Sep - 29 Sep	Delta
18 Sep - 29 Sep	Delta
19 Sep - 22 Sep	United
20 Sep - 24 Sep	United
27 Sep - 07 Oct	United
23 Sep - 02 Oct	Virgin Atlantic
22 Sep - 29 Sep	Delta
29 Sep - 16 Oct	Delta
20 Sep - 22 Oct	Delta
19 Sep - 23 Sep	United
21 Sep - 26 Sep	United
26 Sep - 07 Oct	United
24 Sep - 15 Oct	Delta
21 Sep - 10 Oct	KLM
24 Sep - 03 Oct	Virgin Atlantic
28 Sep - 06 Oct	Lufthansa
23 Sep - 18 Oct	Virgin Atlantic

Also check the deals for one-way flights from New York 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 New York to Athens in September from 475€

Return flights