Cheapest one-way JAX–PHL flights, May

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

One-Way flights

25 May Frontier Airlines direct
15 May Frontier Airlines direct
16 May Southwest Airlines
22 May Frontier Airlines direct
10 May Frontier Airlines direct
11 May Frontier Airlines direct

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

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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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