Cheapest return flights from Phoenix to San Juan in May from 192€

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

Return flights

11 May - 15 May Frontier Airlines
05 May - 08 May Frontier Airlines
02 May - 04 May Frontier Airlines
01 May - 07 May Frontier Airlines
01 May - 05 May Frontier Airlines
06 May - 13 May Frontier Airlines
08 May - 15 May Frontier Airlines
15 May - 23 May Frontier Airlines
15 May - 22 May Frontier Airlines
11 May - 18 May Frontier Airlines
26 May - 05 Jun Frontier Airlines
25 May - 02 Jun Frontier Airlines
28 May - 01 Jun Frontier Airlines

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

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