Cheapest return flights from Jacksonville to Philadelphia in December from $80

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

Return flights

18 Dec - 21 Dec Frontier Airlines direct
19 Dec - 21 Dec Frontier Airlines direct
31 Dec - 04 Jan Frontier Airlines direct
30 Dec - 04 Jan Frontier Airlines direct
18 Dec - 20 Dec Frontier Airlines direct
12 Dec - 18 Dec Frontier Airlines direct
22 Dec - 02 Jan Frontier Airlines
21 Dec - 26 Dec Frontier Airlines direct
20 Dec - 02 Jan Frontier Airlines
12 Dec - 13 Dec Frontier Airlines
04 Dec - 06 Dec Frontier Airlines
12 Dec - 15 Dec Frontier Airlines direct
05 Dec - 06 Dec Frontier Airlines
22 Dec - 26 Dec Frontier Airlines
20 Dec - 02 Jan Frontier Airlines direct
30 Dec - 05 Jan American Airlines direct
22 Dec - 02 Jan American Airlines direct

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

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