Cheapest return flights from Austin to San Juan in June from $278

Best time to book flights for Austin (AUS) to San Juan (SJU) flights at AirHint

AirHint found the following cheapest return flights from Austin (AUS) to San Juan (SJU) in June 2025 (see full year).

Return flights

04 Jun - 12 Jun United
13 Jun - 20 Jun Spirit Airlines
13 Jun - 17 Jun United
09 Jun - 13 Jun Spirit Airlines
04 Jun - 09 Jun United
06 Jun - 09 Jun Frontier Airlines
20 Jun - 26 Jun Spirit Airlines
21 Jun - 26 Jun Spirit Airlines
18 Jun - 03 Jul Southwest Airlines
26 Jun - 30 Jun Spirit Airlines
07 Jun - 14 Jun Spirit Airlines
27 Jun - 01 Jul Southwest Airlines

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

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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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