AirHint found the following cheapest one-way flights from Jacksonville (JAX) to Philadelphia (PHL) in October 2025 (see full year).
One-Way flights
| 27 Oct | Frontier Airlines | ||
| 31 Oct | Frontier Airlines | direct | |
| 27 Oct | Frontier Airlines | direct | |
| 28 Oct | Southwest Airlines |
Also check the deals for return flights from Jacksonville to Philadelphia in October.
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