Cheapest return flights from Phoenix to San Juan in December from $480

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

Return flights

11 Dec - 14 Dec Southwest Airlines
18 Dec - 27 Dec Frontier Airlines
18 Dec - 08 Jan Sun Country Airlines
26 Dec - 08 Jan Sun Country Airlines
18 Dec - 30 Dec Sun Country Airlines
26 Dec - 12 Jan Sun Country Airlines
26 Dec - 27 Dec Sun Country Airlines

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

Skyscanner

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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