Austin (AUS) to San Juan (SJU) flight deal from $245 USD in economy class

UAUnited Airlines

Round Trip•Economy

AUS

Austin-Bergstrom International Ai

Austin, United States

SJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

$444 USD

-45%$245 USD

Verified Nov 30, 2025 at 4:31 AM

April 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$272 31$245 1$245 2$470 3$491 4$492 5$502 6$494 7$304 8$325 9$470 10$470 11$480 12$483 13$373 14$245 15$307 16$399 17$476 18$329 19$484 20$397 21$267 22$245 23$267 24$307 25$245 26$245 27$245 28$245 29$245 30$325 1 2 3

Limited Availability

17% of dates checked are available within 10% of the lowest price

Wednesday, April 15th, 2026

10 round-trip options

Returning

Mon, Apr 20, 2026•5 Day Trip

$535 USD

Google Flights

Returning

Tue, Apr 21, 2026•6 Day Trip

$414 USD

Google Flights

Returning

Wed, Apr 22, 2026•7 Day Trip

$307 USD

Google Flights

Returning

Thu, Apr 23, 2026•8 Day Trip

$461 USD

Google Flights

Returning

Fri, Apr 24, 2026•9 Day Trip

$427 USD

Google Flights

Returning

Sat, Apr 25, 2026•10 Day Trip

$438 USD

Google Flights

Returning

Sun, Apr 26, 2026•11 Day Trip

$602 USD

Google Flights

Returning

Mon, Apr 27, 2026•12 Day Trip

$532 USD

Google Flights

Returning

Tue, Apr 28, 2026•13 Day Trip

$369 USD

Google Flights

Returning

Wed, Apr 29, 2026•14 Day Trip

$329 USD

Google Flights