Cheapest one-way flights from Las Vegas to San Juan in December from 110€

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

One-Way flights

31 Dec Spirit Airlines
03 Dec Spirit Airlines
30 Dec Spirit Airlines
11 Dec Spirit Airlines
16 Dec Southwest Airlines
29 Dec Spirit Airlines
19 Dec Frontier Airlines
27 Dec Spirit Airlines
26 Dec Spirit Airlines

Also check the deals for return flights from Las Vegas 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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