Cheapest return flights from Jacksonville to San Juan in May from 138€

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

Return flights

09 May - 11 May Frontier Airlines direct
02 May - 09 May Frontier Airlines
02 May - 05 May Frontier Airlines
07 May - 10 May Frontier Airlines
28 May - 31 May Frontier Airlines direct
21 May - 27 May Frontier Airlines direct
01 May - 03 May Allegiant Air
02 May - 04 May Frontier Airlines
14 May - 17 May Frontier Airlines
20 May - 25 May Frontier Airlines direct

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