AirHint found the following cheapest return flights from Las Vegas (LAS) to San Juan (SJU) in August 2026 (see full year).

Return flights

05 Aug - 10 Aug	American Airlines
05 Aug - 09 Aug	Delta
03 Aug - 05 Aug	Delta
01 Aug - 03 Aug	American Airlines
01 Aug - 05 Aug	Spirit Airlines
01 Aug - 10 Aug	Spirit Airlines
03 Aug - 03 Aug	American Airlines
03 Aug - 10 Aug	Spirit Airlines
02 Aug - 05 Aug	Spirit Airlines
02 Aug - 10 Aug	Spirit Airlines

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

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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Cheapest return flights from Las Vegas to San Juan in August from $377

Return flights