AirHint found the following cheapest return flights from Los Angeles (LAX) to San Juan (SJU) in June 2026 (see full year).

Return flights

01 Jun - 13 Jun	United
11 Jun - 18 Jun	Southwest Airlines
10 Jun - 18 Jun	Southwest Airlines
01 Jun - 18 Jun	Spirit Airlines
01 Jun - 04 Jun	Spirit Airlines
01 Jun - 02 Jun	Spirit Airlines
05 Jun - 08 Jun	jetBlue
16 Jun - 21 Jun	Southwest Airlines
01 Jun - 08 Jun	Spirit Airlines
16 Jun - 24 Jun	United
28 Jun - 11 Jul	Spirit Airlines
28 Jun - 12 Jul	Spirit Airlines
14 Jun - 31 Jul	Spirit Airlines
22 Jun - 11 Jul	Spirit Airlines
28 Jun - 19 Jul	Spirit Airlines
22 Jun - 12 Jul	Spirit Airlines

Also check the deals for one-way flights from Los Angeles to San Juan in June.

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 Los Angeles to San Juan in June from $320

Return flights