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

Return flights

08 Oct - 15 Oct	United
08 Oct - 14 Oct	United
10 Oct - 22 Oct	Air Canada
12 Oct - 20 Oct	Lufthansa
09 Oct - 13 Oct	British Airways
14 Oct - 21 Oct	United
02 Oct - 09 Oct	United
03 Oct - 11 Oct	British Airways
04 Oct - 11 Oct	British Airways
10 Oct - 18 Oct	British Airways

Also check the deals for one-way flights from Philadelphia 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 Philadelphia to Athens in October from 479€

Return flights