AirHint found the following cheapest return flights from Jacksonville (JAX) to San Juan (SJU)
in April 2025 (see full year ).
Return flights
19 Apr
- 21 Apr
Frontier Airlines
$ 251
direct
24 Apr
- 01 May
Frontier Airlines
$ 252
direct
24 Apr
- 27 Apr
Frontier Airlines
$ 254
direct
27 Apr
- 01 May
Frontier Airlines
$ 255
direct
14 Apr
- 19 Apr
Frontier Airlines
$ 256
direct
16 Apr
- 18 Apr
Frontier Airlines
$ 265
direct
14 Apr
- 18 Apr
Frontier Airlines
$ 266
direct
07 Apr
- 11 Apr
Frontier Airlines
$ 285
direct
15 Apr
- 19 Apr
Frontier Airlines
$ 293
28 Apr
- 04 May
jetBlue
$ 304
12 Apr
- 14 Apr
Frontier Airlines
$ 316
direct
18 Apr
- 22 Apr
Frontier Airlines
$ 322
25 Apr
- 29 Apr
American Airlines
$ 322
Also check the deals for one-way flights from Jacksonville to San Juan in April .
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.