AirHint found the following cheapest return flights from Houston (HOU) to San Juan (SJU) in January 2026 (see full year).

Return flights

26 Jan - 30 Jan	Spirit Airlines
26 Jan - 30 Jan	Spirit Airlines	direct
21 Jan - 23 Jan	Spirit Airlines
17 Jan - 24 Jan	Spirit Airlines
17 Jan - 23 Jan	Spirit Airlines
21 Jan - 24 Jan	Spirit Airlines
09 Jan - 24 Jan	Spirit Airlines
09 Jan - 23 Jan	Spirit Airlines
09 Jan - 23 Jan	Spirit Airlines	direct
09 Jan - 16 Jan	Spirit Airlines	direct

Also check the deals for one-way flights from Houston to San Juan in January.

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.

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Cheapest return flights from Houston to San Juan in January from $270

Return flights