Cheapest one-way flights from Jacksonville to Philadelphia in January from 78€

AirHint found the following cheapest one-way flights from Jacksonville (JAX) to Philadelphia (PHL) in January 2026 (see full year).

One-Way flights

30 Jan Frontier Airlines direct
20 Jan Southwest Airlines
19 Jan Frontier Airlines direct

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

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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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