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

Return flights

02 Sep - 09 Sep	Air Canada
03 Sep - 17 Sep	Lufthansa
03 Sep - 18 Sep	United
02 Sep - 11 Sep	Air Canada
23 Sep - 30 Sep	Air Canada
03 Sep - 12 Sep	Air Canada
17 Sep - 23 Sep	Air Canada
08 Sep - 25 Sep	Air Canada
02 Sep - 17 Sep	United
10 Sep - 17 Sep	United
22 Sep - 07 Oct	Delta
24 Sep - 01 Oct	Air Canada
23 Sep - 17 Oct	Air Canada
30 Sep - 07 Oct	Air Canada
25 Sep - 02 Oct	Air Canada
26 Sep - 03 Oct	KLM
27 Sep - 04 Oct	Air Canada
29 Sep - 20 Oct	Delta
29 Sep - 16 Oct	Air Canada
28 Sep - 05 Oct	Air Canada

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 292€

Return flights