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

Return flights

15 Jul - 23 Jul	ITA Airways
28 Jul - 11 Aug	ITA Airways
31 Jul - 14 Aug	Frontier Airlines
23 Jul - 04 Aug	Icelandair
08 Jul - 13 Jul	ITA Airways
11 Jul - 18 Jul	ITA Airways
31 Jul - 12 Aug	ITA Airways
31 Jul - 13 Aug	ITA Airways
16 Jul - 04 Aug	Icelandair
25 Jul - 04 Aug	ITA Airways
26 Jul - 04 Aug	ITA Airways
25 Jul - 05 Aug	ITA Airways
17 Jul - 24 Jul	Icelandair
14 Jul - 21 Jul	Icelandair
23 Jul - 27 Jul	SWISS
15 Jul - 29 Jul	Scandinavian Airlines
15 Jul - 22 Jul	Scandinavian Airlines
13 Jul - 22 Jul	ITA Airways
14 Jul - 15 Aug	Scandinavian Airlines
16 Jul - 23 Jul	Lufthansa

Also check the deals for one-way flights from Washington to Athens in July.

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 July from 779€

Return flights