Cheapest return flights from Phoenix to San Juan in December from $314

AirHint found the following cheapest return flights from Phoenix (PHX) to San Juan (SJU) in December 2025 (see full year).

Return flights

18 Dec - 23 Dec Frontier Airlines
18 Dec - 22 Dec Frontier Airlines
25 Dec - 29 Dec Frontier Airlines
22 Dec - 07 Jan Frontier Airlines
21 Dec - 01 Jan Frontier Airlines
20 Dec - 26 Dec Frontier Airlines
21 Dec - 26 Dec Frontier Airlines
19 Dec - 26 Dec Frontier Airlines
20 Dec - 28 Dec jetBlue
26 Dec - 04 Jan jetBlue
22 Dec - 23 Dec Sun Country Airlines
20 Dec - 23 Dec Sun Country Airlines
20 Dec - 22 Dec Sun Country Airlines
22 Dec - 09 Jan Sun Country Airlines
20 Dec - 09 Jan Sun Country Airlines
22 Dec - 10 Jan Sun Country Airlines
22 Dec - 11 Jan Sun Country Airlines
20 Dec - 07 Jan Sun Country Airlines

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

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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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