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

Return flights

29 Jul - 20 Aug	Air Canada
13 Jul - 19 Aug	British Airways
20 Jul - 31 Aug	Air Canada
25 Jul - 20 Aug	Lufthansa
23 Jul - 19 Aug	SWISS
14 Jul - 22 Jul	Brussels Airlines
15 Jul - 22 Jul	SWISS
01 Jul - 18 Aug	ITA Airways
08 Jul - 22 Jul	Icelandair
07 Jul - 14 Jul	Icelandair
11 Jul - 24 Jul	Porter Airlines (Canada) Ltd
23 Jul - 18 Aug	SWISS
30 Jul - 18 Aug	SWISS
01 Jul - 08 Jul	SWISS
29 Jul - 13 Aug	Air Canada
27 Jul - 02 Aug	Icelandair
14 Jul - 20 Jul	Brussels Airlines
19 Jul - 30 Jul	Turkish Airlines
05 Jul - 14 Jul	SWISS
04 Jul - 10 Jul	Turkish Airlines

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.

Book a cheap hotel in Athens

Cheap car rent in Athens

Cheapest return flights from Washington to Athens in July from $582

Return flights