AirHint found the following cheapest one-way flights from Houston (IAH) to San Juan (SJU) in October 2025 (see full year).

One-Way flights

16 Oct	Spirit Airlines	direct
26 Oct	Spirit Airlines	direct
19 Oct	Spirit Airlines	direct
01 Oct	Spirit Airlines
07 Oct	Spirit Airlines
05 Oct	Spirit Airlines	direct
09 Oct	Spirit Airlines	direct
02 Oct	Spirit Airlines
21 Oct	Delta
30 Oct	Spirit Airlines

Also check the deals for return flights from Houston to San Juan in October.

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Cheapest one-way flights from Houston to San Juan in October from 57€

One-Way flights