Cheapest return flights from Austin to San Juan in June from $326

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

01 Jun - 05 Jun Frontier Airlines
06 Jun - 11 Jun Frontier Airlines
07 Jun - 11 Jun United
29 Jun - 13 Jul United
12 Jun - 17 Jun Frontier Airlines
12 Jun - 16 Jun Frontier Airlines
09 Jun - 22 Jun American Airlines
04 Jun - 12 Jun United
10 Jun - 14 Jun United
07 Jun - 15 Jun Spirit Airlines
26 Jun - 30 Jun United
28 Jun - 12 Jul Delta
26 Jun - 06 Jul United

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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