Cheapest one-way flights from Austin to San Juan in May from 74€

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

One-Way flights

16 May Spirit Airlines
19 May Spirit Airlines
13 May Spirit Airlines
14 May Frontier Airlines
17 May Frontier Airlines
18 May Frontier Airlines
02 May Spirit Airlines
06 May Spirit Airlines
15 May Spirit Airlines
20 May Spirit Airlines

Also check the deals for return flights from Austin to San Juan in May.

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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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