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

One-Way flights

12 Aug	TAP
26 Aug	Icelandair
28 Aug	Icelandair
25 Aug	Scandinavian Airlines
09 Aug	Icelandair
29 Aug	Icelandair
25 Aug	United	direct
22 Aug	Scandinavian Airlines
26 Aug	United	direct
12 Aug	United	direct

Also check the deals for return 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 one-way flights from Washington to Athens in August from $311

One-Way flights