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

Return flights

01 Sep - 10 Sep	United
03 Sep - 09 Sep	Delta
29 Sep - 06 Oct	Air Canada
30 Sep - 07 Oct	Air Canada
04 Sep - 09 Sep	Air Canada
04 Sep - 10 Sep	Delta
07 Sep - 16 Sep	Air Canada
20 Sep - 23 Sep	Lufthansa
02 Sep - 09 Sep	Delta
07 Sep - 11 Sep	Lufthansa
02 Sep - 12 Sep	Lufthansa
23 Sep - 25 Sep	Air Canada
25 Sep - 08 Oct	Air Canada
27 Sep - 04 Oct	Air Canada
22 Sep - 14 Oct	Air Canada
29 Sep - 21 Oct	Air Canada
26 Sep - 03 Oct	Air Canada
23 Sep - 02 Oct	United
20 Sep - 11 Oct	United
29 Sep - 20 Oct	Delta

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 414€

Return flights