Cheapest one-way flights from Jacksonville to Philadelphia in December from $39

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

One-Way flights

25 Dec Frontier Airlines direct
24 Dec Frontier Airlines direct
15 Dec Frontier Airlines
26 Dec Frontier Airlines
04 Dec Frontier Airlines
26 Dec Frontier Airlines direct
15 Dec Frontier Airlines direct
27 Dec Frontier Airlines direct
28 Dec Allegiant Air
03 Dec Southwest Airlines

Also check the deals for return flights from Jacksonville to Philadelphia in December.

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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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