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

Return flights

10 Aug - 04 Sep	KLM
18 Aug - 03 Sep	Air Canada
25 Aug - 03 Sep	Air Canada
09 Aug - 22 Aug	Delta
15 Aug - 29 Aug	Delta
18 Aug - 26 Aug	Delta
22 Aug - 26 Aug	Delta
15 Aug - 26 Aug	Delta
31 Aug - 07 Sep	Delta
13 Aug - 25 Aug	Delta
13 Aug - 20 Aug	British Airways
14 Aug - 25 Aug	Delta
11 Aug - 18 Aug	jetBlue
08 Aug - 22 Aug	Virgin Atlantic
26 Aug - 09 Sep	British Airways
29 Aug - 13 Sep	Delta
30 Aug - 09 Sep	British Airways
28 Aug - 01 Sep	British Airways
30 Aug - 07 Sep	British Airways
28 Aug - 05 Sep	Emirates

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 474€

Return flights