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

Return flights

24 Aug - 03 Sep	Spirit Airlines
19 Aug - 26 Aug	United
22 Aug - 29 Aug	United
21 Aug - 28 Aug	Air Canada
25 Aug - 01 Sep	United
28 Aug - 04 Sep	United
25 Aug - 07 Sep	United
28 Aug - 07 Sep	Turkish Airlines
28 Aug - 08 Sep	Turkish Airlines
02 Aug - 12 Aug	Spirit Airlines
21 Aug - 28 Aug	Finnair	direct
24 Aug - 03 Sep	American Airlines	direct
20 Aug - 24 Aug	Iberia
06 Aug - 13 Aug	United
02 Aug - 12 Aug	American Airlines	direct
13 Aug - 20 Aug	United
04 Aug - 11 Aug	United

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

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.

Book a cheap hotel in Athens

Cheap car rent in Athens

Cheapest return flights from Philadelphia to Athens in August from $642

Return flights