Cheapest one-way AUS–SJU flights, July

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

One-Way flights

10 Jul Frontier Airlines
11 Jul Frontier Airlines
25 Jul Frontier Airlines
04 Jul Frontier Airlines
18 Jul Frontier Airlines
24 Jul Frontier Airlines
25 Jul Southwest Airlines direct
04 Jul Southwest Airlines direct
11 Jul Southwest Airlines direct
18 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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

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