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

Return flights

05 Aug - 21 Aug	jetBlue
20 Aug - 27 Aug	Spirit Airlines
21 Aug - 28 Aug	Spirit Airlines
22 Aug - 26 Aug	jetBlue
21 Aug - 25 Aug	jetBlue
05 Aug - 21 Aug	Finnair	direct
10 Aug - 19 Aug	Finnair	direct
24 Aug - 15 Sep	KLM
20 Aug - 27 Aug	Finnair	direct
22 Aug - 26 Aug	Finnair	direct
15 Aug - 22 Aug	United
31 Aug - 07 Sep	KLM
24 Aug - 15 Sep	Finnair	direct
29 Aug - 05 Sep	United
27 Aug - 03 Sep	Air France

Also check the deals for one-way flights from Philadelphia to Paris 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.

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Cheapest return flights from Philadelphia to Paris in August from $578

Return flights