Cheapest return flights from Austin to San Juan in July from $252

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

Return flights

11 Jul - 17 Jul Frontier Airlines
21 Jul - 28 Jul Frontier Airlines
11 Jul - 18 Jul Frontier Airlines
22 Jul - 26 Jul Spirit Airlines
11 Jul - 24 Jul Frontier Airlines
25 Jul - 06 Aug Frontier Airlines
24 Jul - 27 Jul Frontier Airlines
21 Jul - 31 Jul Frontier Airlines
22 Jul - 31 Jul Spirit Airlines
23 Jul - 27 Jul Spirit Airlines
24 Jul - 06 Aug Frontier Airlines
01 Jul - 04 Jul Spirit Airlines
22 Jul - 02 Aug Spirit Airlines
22 Jul - 06 Aug Spirit Airlines
21 Jul - 02 Aug Spirit Airlines
14 Jul - 02 Aug Spirit Airlines
15 Jul - 02 Aug Spirit Airlines
21 Jul - 06 Aug Spirit Airlines
22 Jul - 04 Aug Spirit Airlines
23 Jul - 02 Aug Spirit Airlines

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

Skyscanner

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.