Cheapest one-way flights from Austin to San Juan in July from $136

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

One-Way flights

15 Jul Spirit Airlines
29 Jul Spirit Airlines
18 Jul United
09 Jul United
11 Jul Spirit Airlines
22 Jul American Airlines
10 Jul American Airlines
01 Jul Spirit Airlines
18 Jul Southwest Airlines direct
11 Jul Southwest Airlines direct

Also check the deals for return 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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