San Francisco (SFO) to Austin (AUS) flight deal from $177 USD in economy class

UAUnited Airlines

Round Trip•Economy

SFO

San Francisco International Airport

San Francisco, United States

AUS

Austin-Bergstrom International Ai

Austin, United States

$346 USD

-49%$177 USD

Verified Nov 3, 2025 at 2:39 AM

December 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1$276 2$177 3$177 4$187 5$187 6$177 7$187 8$187 9$177 10$177 11$197 12$187 13$177 14$187 15$187 16$177 17$177 18$224 19$282 20$292 21$275 22$285 23$263 24$216 25$197 26$272 27$272 28$272 29$272 30$177 31$177 1 2 3 4

Limited Availability

13% of dates checked are available within 10% of the lowest price

Wednesday, December 17th, 2025

10 round-trip options

Returning

Mon, Dec 22, 2025•5 Day Trip

$187 USD

Google Flights

Returning

Tue, Dec 23, 2025•6 Day Trip

$197 USD

Google Flights

Returning

Wed, Dec 24, 2025•7 Day Trip

$177 USD

Google Flights

Returning

Thu, Dec 25, 2025•8 Day Trip

$187 USD

Google Flights

Returning

Fri, Dec 26, 2025•9 Day Trip

$272 USD

Google Flights

Returning

Sat, Dec 27, 2025•10 Day Trip

$321 USD

Google Flights

Returning

Sun, Dec 28, 2025•11 Day Trip

$272 USD

Google Flights

Returning

Mon, Dec 29, 2025•12 Day Trip

$272 USD

Google Flights

Returning

Tue, Dec 30, 2025•13 Day Trip

$275 USD

Google Flights

Returning

Wed, Dec 31, 2025•14 Day Trip

$216 USD

Google Flights