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

Return flights

31 Aug - 09 Sep	Delta
24 Aug - 09 Sep	Turkish Airlines
24 Aug - 10 Sep	Turkish Airlines
23 Aug - 28 Aug	Scandinavian Airlines
25 Aug - 20 Sep	Scandinavian Airlines
24 Aug - 08 Sep	Turkish Airlines
21 Aug - 13 Sep	ITA Airways
19 Aug - 26 Aug	Scandinavian Airlines
18 Aug - 26 Aug	Scandinavian Airlines
26 Aug - 02 Sep	Icelandair
26 Aug - 20 Sep	Icelandair
20 Aug - 27 Aug	Scandinavian Airlines
18 Aug - 13 Sep	TAP
20 Aug - 13 Sep	SWISS
21 Aug - 24 Aug	TAP
29 Aug - 31 Aug	British Airways
18 Aug - 26 Aug	United	direct
19 Aug - 26 Aug	United	direct
23 Aug - 28 Aug	Brussels Airlines	direct

Also check the deals for one-way flights from Washington 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 Washington to Athens in August from 463€

Return flights