AirHint found the following cheapest return flights from Newark (EWR) to Athens (ATH) in August 2025 (see full year).

Return flights

25 Aug - 09 Sep	Air Canada
27 Aug - 05 Sep	Air Canada
19 Aug - 04 Sep	Air Canada
25 Aug - 19 Sep	Air Canada
10 Aug - 17 Sep	Air Canada
20 Aug - 08 Sep	Air Canada
25 Aug - 03 Sep	SWISS
23 Aug - 05 Sep	Air Canada
31 Aug - 12 Sep	Air Canada
25 Aug - 04 Sep	Air Canada
06 Aug - 28 Aug	Air Canada
12 Aug - 28 Aug	Air Canada
19 Aug - 28 Aug	Air Canada
10 Aug - 29 Aug	Air Canada
18 Aug - 28 Aug	Air Canada
17 Aug - 28 Aug	Air Canada
19 Aug - 26 Aug	Scandinavian Airlines
03 Aug - 15 Aug	Virgin Atlantic
05 Aug - 14 Aug	Delta
04 Aug - 14 Aug	Delta

Also check the deals for one-way flights from Newark to Athens in August.

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 Newark to Athens in August from $399

Return flights