Cheapest return flights from Austin to San Juan in July from $292

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 July 2025 (see full year).

Return flights

20 Jul - 25 Jul United
13 Jul - 16 Jul American Airlines
21 Jul - 01 Aug American Airlines
26 Jul - 30 Jul Delta
12 Jul - 16 Jul American Airlines
12 Jul - 22 Jul United
15 Jul - 22 Jul United
24 Jul - 29 Jul Delta
18 Jul - 24 Jul Delta
27 Jul - 03 Aug United
03 Jul - 07 Jul United

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