AirHint found the following cheapest return flights from Houston (IAH) to San Juan (SJU)
in September 2025 (see full year ).
Return flights
25 Sep
- 29 Sep
United
$ 180
21 Sep
- 28 Sep
Spirit Airlines
$ 222
direct
25 Sep
- 02 Oct
Spirit Airlines
$ 222
direct
28 Sep
- 05 Oct
Spirit Airlines
$ 222
direct
04 Sep
- 11 Sep
Spirit Airlines
$ 249
11 Sep
- 18 Sep
Spirit Airlines
$ 249
02 Sep
- 09 Sep
Spirit Airlines
$ 277
03 Sep
- 10 Sep
Spirit Airlines
$ 277
06 Sep
- 13 Sep
Spirit Airlines
$ 277
09 Sep
- 16 Sep
Spirit Airlines
$ 277
10 Sep
- 17 Sep
Spirit Airlines
$ 277
15 Sep
- 22 Sep
Spirit Airlines
$ 277
24 Sep
- 01 Oct
Spirit Airlines
$ 277
26 Sep
- 03 Oct
Spirit Airlines
$ 277
27 Sep
- 04 Oct
Spirit Airlines
$ 277
29 Sep
- 06 Oct
Spirit Airlines
$ 277
30 Sep
- 07 Oct
Spirit Airlines
$ 277
24 Sep
- 01 Oct
United
$ 386
direct
26 Sep
- 03 Oct
United
$ 386
direct
29 Sep
- 06 Oct
United
$ 386
direct
Also check the deals for one-way flights from Houston to San Juan in September .
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.