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

Return flights

03 Dec - 10 Dec	United
05 Dec - 12 Dec	Aer Lingus
27 Dec - 17 Jan	Air Canada
01 Dec - 05 Dec	Frontier Airlines
11 Dec - 14 Dec	Aer Lingus
15 Dec - 10 Jan	Spirit Airlines
11 Dec - 11 Jan	Frontier Airlines
15 Dec - 22 Dec	Air France
11 Dec - 14 Dec	Finnair	direct
22 Dec - 17 Jan	Frontier Airlines
28 Dec - 07 Jan	Finnair	direct
30 Dec - 06 Jan	United
31 Dec - 07 Jan	Air France
07 Dec - 27 Dec	United
10 Dec - 27 Dec	United
19 Dec - 23 Jan	Spirit Airlines
27 Dec - 17 Jan	Finnair	direct
17 Dec - 24 Dec	Air France
19 Dec - 12 Jan	Spirit Airlines
11 Dec - 29 Dec	Finnair	direct

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

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 December from 523€

Return flights