Cheapest return flights from Philadelphia to Athens in September from $846

Best time to book flights for Philadelphia (PHL) to Athens (ATH) flights at AirHint

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

Return flights

30 Sep - 17 Oct Air Canada
30 Sep - 16 Oct Air Canada
16 Sep - 26 Sep British Airways
23 Sep - 30 Sep United
30 Sep - 18 Oct Air Canada
03 Sep - 10 Sep United
13 Sep - 29 Sep Air Canada
08 Sep - 12 Sep Aer Lingus
13 Sep - 20 Sep United
16 Sep - 26 Sep British Airways direct
08 Sep - 12 Sep Finnair direct

Also check the deals for one-way flights from Philadelphia to Athens in September.

Skyscanner

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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