AirHint found the following cheapest return flights from Houston (HOU) to San Juan (SJU) in October 2025 (see full year).

Return flights

09 Oct - 23 Oct	United	direct
17 Oct - 31 Oct	United	direct
18 Oct - 01 Nov	United	direct
09 Oct - 11 Oct	United
13 Oct - 22 Oct	United
01 Oct - 15 Oct	United
13 Oct - 27 Oct	United
14 Oct - 28 Oct	United
04 Oct - 10 Oct	United
17 Oct - 21 Oct	United
17 Oct - 22 Oct	United
22 Oct - 05 Nov	United
24 Oct - 07 Nov	United
20 Oct - 03 Nov	United
23 Oct - 06 Nov	United
25 Oct - 08 Nov	United
29 Oct - 02 Nov	United
19 Oct - 02 Nov	United
30 Oct - 02 Nov	United
17 Oct - 02 Nov	Frontier Airlines

Also check the deals for one-way 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 return flights from Houston to San Juan in October from 133€

Return flights