Cheapest return flights from Las Vegas to San Juan in December from $236

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

Return flights

05 Dec - 14 Dec Frontier Airlines
04 Dec - 11 Dec Frontier Airlines
06 Dec - 15 Dec Frontier Airlines
07 Dec - 11 Dec Frontier Airlines
09 Dec - 14 Dec Frontier Airlines
06 Dec - 14 Dec Frontier Airlines
06 Dec - 13 Dec Spirit Airlines
01 Dec - 08 Dec Frontier Airlines
05 Dec - 12 Dec Spirit Airlines
05 Dec - 08 Dec Spirit Airlines
30 Dec - 13 Jan Spirit Airlines
29 Dec - 13 Jan Spirit Airlines
28 Dec - 13 Jan Spirit Airlines
29 Dec - 01 Jan Frontier Airlines
24 Dec - 13 Jan Spirit Airlines
22 Dec - 08 Jan Frontier Airlines
30 Dec - 01 Jan Spirit Airlines
12 Dec - 01 Jan Spirit Airlines
30 Dec - 08 Jan Spirit Airlines
28 Dec - 01 Jan Spirit Airlines

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

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