Cheapest return JAX–SJU flights, June

AirHint found the following cheapest return flights from Jacksonville (JAX) to San Juan (SJU) in June 2026 (see full year).

Return flights

09 Jun - 13 Jun Frontier Airlines direct
07 Jun - 11 Jun Frontier Airlines direct
23 Jun - 30 Jun Frontier Airlines
03 Jun - 08 Jun Frontier Airlines
23 Jun - 30 Jun Frontier Airlines direct
13 Jun - 13 Jun Frontier Airlines
04 Jun - 08 Jun Frontier Airlines direct
13 Jun - 14 Jun Frontier Airlines
11 Jun - 18 Jun Frontier Airlines
26 Jun - 30 Jun Frontier Airlines

Also check the deals for one-way flights from Jacksonville to San Juan in June.

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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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