Cheapest return JAX–PHL flights, August

AirHint found the following cheapest return flights from Jacksonville (JAX) to Philadelphia (PHL) in August 2026 (see full year).

Return flights

19 Aug - 26 Aug Frontier Airlines
19 Aug - 26 Aug Frontier Airlines direct
27 Aug - 30 Aug Frontier Airlines direct
13 Aug - 20 Aug Frontier Airlines
16 Aug - 23 Aug Frontier Airlines
17 Aug - 24 Aug Frontier Airlines
27 Aug - 03 Sep Frontier Airlines
14 Aug - 21 Aug Frontier Airlines
11 Aug - 17 Aug Frontier Airlines
13 Aug - 20 Aug Frontier Airlines direct
16 Aug - 23 Aug Frontier Airlines direct

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

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