Cheapest return flights from Austin to San Juan in January from 211€

AirHint found the following cheapest return flights from Austin (AUS) to San Juan (SJU) in January 2026 (see full year).

Return flights

20 Jan - 23 Jan United
06 Jan - 15 Jan Southwest Airlines
19 Jan - 27 Jan Delta
08 Jan - 13 Jan Spirit Airlines
16 Jan - 21 Jan Frontier Airlines
09 Jan - 17 Jan Spirit Airlines
22 Jan - 26 Jan Frontier Airlines
21 Jan - 25 Jan Spirit Airlines
13 Jan - 26 Jan Spirit Airlines
21 Jan - 26 Jan Spirit Airlines
21 Jan - 08 Feb Spirit Airlines
21 Jan - 09 Feb Spirit Airlines
22 Jan - 08 Feb Spirit Airlines
22 Jan - 09 Feb Spirit Airlines
20 Jan - 08 Feb Spirit Airlines
20 Jan - 09 Feb Spirit Airlines

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

Powered by

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

Feel free to contact us with any feedback or request another flight research.