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

Return flights

26 May - 03 Jun	Spirit Airlines
26 May - 31 May	Spirit Airlines
08 May - 11 May	Spirit Airlines
08 May - 14 May	Spirit Airlines
07 May - 11 May	Spirit Airlines
07 May - 14 May	Spirit Airlines
08 May - 11 May	United	direct
07 May - 11 May	United	direct
31 May - 06 Jun	United	direct
26 May - 31 May	United	direct
26 May - 14 Jun	Spirit Airlines
23 May - 26 May	United	direct
26 May - 15 Jun	Spirit Airlines

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

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 May from 208€

Return flights