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

Return flights

07 Oct - 16 Oct	Delta
21 Oct - 11 Nov	British Airways
24 Oct - 07 Nov	British Airways
27 Oct - 10 Nov	British Airways
01 Oct - 13 Oct	Delta
19 Oct - 30 Oct	Delta
28 Oct - 31 Oct	jetBlue
22 Oct - 25 Oct	jetBlue
09 Oct - 23 Oct	British Airways
12 Oct - 21 Oct	British Airways
17 Oct - 20 Oct	Air Canada
17 Oct - 26 Oct	Air Canada
16 Oct - 26 Oct	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 508€

Return flights