Cheapest return IAH–SJU flights, May

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

Return flights

24 May - 30 May Frontier Airlines
26 May - 30 May Frontier Airlines
27 May - 30 May Frontier Airlines
26 May - 02 Jun Frontier Airlines
27 May - 01 Jun Frontier Airlines
27 May - 03 Jun Frontier Airlines
27 May - 02 Jun Frontier Airlines
28 May - 01 Jun Frontier Airlines
25 May - 29 May Frontier Airlines
25 May - 01 Jun Frontier Airlines
18 May - 21 May Frontier Airlines
28 May - 02 Jun Frontier Airlines
30 May - 06 Jun Frontier Airlines
31 May - 06 Jun Frontier Airlines
17 May - 24 May Frontier Airlines
17 May - 23 May Frontier Airlines
25 May - 31 May Frontier Airlines
31 May - 04 Jun Frontier Airlines
24 May - 27 May Frontier Airlines
24 May - 26 May Frontier Airlines

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

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