Cheapest return flights from Austin to San Juan in May from $246

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 May 2025 (see full year).

Return flights

17 May - 24 May Spirit Airlines
19 May - 24 May Frontier Airlines
17 May - 31 May Spirit Airlines
19 May - 30 May Delta
11 May - 16 May Spirit Airlines
24 May - 27 May Spirit Airlines
19 May - 26 May Frontier Airlines
15 May - 18 May Spirit Airlines
02 May - 04 May Frontier Airlines
08 May - 11 May Frontier Airlines
19 May - 02 Jun Frontier Airlines
29 May - 06 Jun Frontier Airlines
29 May - 01 Jun Frontier Airlines
31 May - 05 Jun Spirit Airlines

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

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.

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