Cheapest return flights from Austin to San Juan in July from $339

AirHint found the following cheapest return flights from Austin (AUS) to San Juan (SJU) in July 2026 (see full year).

Return flights

15 Jul - 22 Jul Spirit Airlines
28 Jul - 01 Aug Spirit Airlines
25 Jul - 01 Aug jetBlue
18 Jul - 25 Jul American Airlines
05 Jul - 01 Aug Allegiant Air
31 Jul - 01 Aug American Airlines
04 Jul - 01 Aug United
28 Jul - 09 Aug Spirit Airlines
25 Jul - 09 Aug Spirit Airlines
31 Jul - 09 Aug Spirit Airlines
04 Jul - 23 Jul Spirit Airlines
04 Jul - 24 Jul Spirit Airlines
05 Jul - 23 Jul Spirit Airlines
05 Jul - 24 Jul Spirit Airlines

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

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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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