Cheapest return flights from Houston to San Juan in January from $138

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

Return flights

25 Jan - 31 Jan Frontier Airlines
18 Jan - 22 Jan Frontier Airlines
25 Jan - 29 Jan Frontier Airlines
11 Jan - 14 Jan Frontier Airlines
26 Jan - 28 Jan Frontier Airlines
09 Jan - 11 Jan Frontier Airlines
23 Jan - 26 Jan Frontier Airlines
10 Jan - 12 Jan Frontier Airlines
10 Jan - 13 Jan Frontier Airlines
22 Jan - 26 Jan Frontier Airlines
30 Jan - 02 Feb Frontier Airlines
30 Jan - 02 Feb Spirit Airlines direct
30 Jan - 09 Feb Spirit Airlines direct
30 Jan - 06 Feb Spirit Airlines direct
23 Jan - 09 Feb Spirit Airlines direct
23 Jan - 02 Feb Spirit Airlines direct
23 Jan - 06 Feb Spirit Airlines direct
13 Jan - 02 Feb Spirit Airlines
24 Jan - 09 Feb Spirit Airlines
24 Jan - 02 Feb Spirit Airlines

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

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