Cheapest return flights from Phoenix to San Juan in January from $210

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

Return flights

06 Jan - 12 Jan Frontier Airlines
05 Jan - 09 Jan Frontier Airlines
12 Jan - 17 Jan Frontier Airlines
24 Jan - 01 Feb Frontier Airlines
23 Jan - 30 Jan Frontier Airlines
16 Jan - 26 Jan Frontier Airlines
23 Jan - 01 Feb Frontier Airlines
09 Jan - 11 Jan Frontier Airlines
29 Jan - 02 Feb Frontier Airlines
30 Jan - 07 Feb Frontier Airlines
16 Jan - 25 Jan Frontier Airlines
29 Jan - 07 Feb Frontier Airlines
01 Jan - 05 Jan Frontier Airlines
07 Jan - 26 Jan Spirit Airlines
17 Jan - 30 Jan Sun Country Airlines
28 Jan - 05 Feb United
17 Jan - 07 Feb Sun Country Airlines
22 Jan - 07 Feb Sun Country Airlines
24 Jan - 07 Feb Sun Country Airlines
23 Jan - 07 Feb Sun Country Airlines

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

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