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

Return flights

08 Oct - 18 Nov	Scandinavian Airlines
07 Oct - 21 Oct	Scandinavian Airlines
21 Oct - 04 Nov	Scandinavian Airlines
21 Oct - 26 Nov	Scandinavian Airlines
08 Oct - 12 Oct	Icelandair
02 Oct - 16 Oct	Turkish Airlines
23 Oct - 29 Oct	Turkish Airlines
12 Oct - 24 Oct	United	direct
24 Oct - 07 Nov	Turkish Airlines
11 Oct - 20 Oct	Scandinavian Airlines
03 Oct - 13 Oct	Turkish Airlines
11 Oct - 20 Oct	United	direct
08 Oct - 18 Oct	United
06 Oct - 08 Oct	Aer Lingus
18 Oct - 02 Nov	Air Canada

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

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 October from 394€

Return flights