Cheapest one-way JAX–SJU flights, April

AirHint found the following cheapest one-way flights from Jacksonville (JAX) to San Juan (SJU) in April 2026 (see full year).

One-Way flights

26 Apr Frontier Airlines direct
23 Apr Frontier Airlines direct
30 Apr Frontier Airlines direct
29 Apr Delta
29 Apr jetBlue direct
19 Apr Frontier Airlines
17 Apr Frontier Airlines
19 Apr Frontier Airlines direct

Also check the deals for return flights from Jacksonville to San Juan in April.

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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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