Cheapest return flights from San Jose to San Juan in March from $367
AirHint found the following cheapest return flights from San Jose (SJC) to San Juan (SJU)
in March 2026 (see full year ).
Return flights
23 Mar
- 31 Mar
Frontier Airlines
$ 367
24 Mar
- 03 Apr
American Airlines
$ 441
23 Mar
- 30 Mar
Frontier Airlines
$ 453
26 Mar
- 31 Mar
Frontier Airlines
$ 485
23 Mar
- 29 Mar
Frontier Airlines
$ 498
27 Mar
- 04 Apr
Frontier Airlines
$ 502
23 Mar
- 27 Mar
Frontier Airlines
$ 543
16 Mar
- 20 Mar
Southwest Airlines
$ 659
25 Mar
- 03 Apr
Alaska Airlines
$ 677
31 Mar
- 07 Apr
Alaska Airlines
$ 685
20 Mar
- 27 Mar
Alaska Airlines
$ 696
26 Mar
- 02 Apr
Alaska Airlines
$ 735
28 Mar
- 04 Apr
Southwest Airlines
$ 751
29 Mar
- 03 Apr
Alaska Airlines
$ 805
18 Mar
- 23 Mar
Alaska Airlines
$ 830
12 Mar
- 16 Mar
Alaska Airlines
$ 905
26 Mar
- 30 Mar
Alaska Airlines
$ 905
29 Mar
- 05 Apr
Alaska Airlines
$ 1017
Also check the deals for one-way flights from San Jose to San Juan in March .
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