Cheapest return flights from Philadelphia to Athens in September from 520€

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

Return flights

08 Sep - 24 Sep Air Canada
01 Sep - 18 Sep Air Canada
03 Sep - 10 Sep United
17 Sep - 24 Sep United
24 Sep - 01 Oct United
09 Sep - 16 Sep United
20 Sep - 01 Oct United
11 Sep - 18 Sep United
15 Sep - 22 Sep United
18 Sep - 27 Sep Spirit Airlines
01 Sep - 08 Sep United
17 Sep - 27 Sep Frontier Airlines
27 Sep - 04 Oct United

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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