Cheapest return flights from Las Vegas to San Juan in December from 226€

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

Return flights

17 Dec - 22 Dec Frontier Airlines
30 Dec - 17 Jan Spirit Airlines
30 Dec - 15 Jan Spirit Airlines
30 Dec - 16 Jan Spirit Airlines
31 Dec - 17 Jan Spirit Airlines
30 Dec - 13 Jan Spirit Airlines
30 Dec - 14 Jan Spirit Airlines
31 Dec - 15 Jan Spirit Airlines
31 Dec - 05 Jan Frontier Airlines
30 Dec - 12 Jan Spirit Airlines
30 Dec - 20 Jan Spirit Airlines
24 Dec - 29 Dec Frontier Airlines
23 Dec - 29 Dec Frontier Airlines
23 Dec - 25 Dec Spirit Airlines
20 Dec - 25 Dec Spirit Airlines
17 Dec - 25 Dec Spirit Airlines
17 Dec - 29 Dec Spirit Airlines
22 Dec - 28 Dec Spirit Airlines
19 Dec - 28 Dec Frontier Airlines
16 Dec - 25 Dec Spirit Airlines

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

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