$99 Cheap United flights San Francisco (SFO) to Austin (AUS)

View $99 flight on Sat, Aug 30, 2025Opens in a new window

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$99 Cheap United flights San Francisco (SFO) to Austin (AUS)

Prices were available within the past 7 days and start at $99 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Aug 30 - Sat, Sep 6
SFO
San Francisco
AUS
Austin
$197 Roundtrip, just found
$197
Roundtrip
just found
Select United flight, departing Sat, Aug 30 from San Francisco to Austin, returning Sat, Sep 6, priced at $197 just found
United
Wed, Aug 20 - Tue, Aug 26
SFO
San Francisco
AUS
Austin
$200 Roundtrip, found 1 hour ago
$200
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 20 from San Francisco to Austin, returning Tue, Aug 26, priced at $200 found 1 hour ago
United
Wed, Aug 13 - Tue, Aug 19
SFO
San Francisco
AUS
Austin
$203 Roundtrip, found 1 hour ago
$203
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 13 from San Francisco to Austin, returning Tue, Aug 19, priced at $203 found 1 hour ago
United
Wed, Aug 13 - Tue, Aug 19
SFO
San Francisco
AUS
Austin
$205 Roundtrip, found 1 hour ago
$205
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 13 from San Francisco to Austin, returning Tue, Aug 19, priced at $205 found 1 hour ago
United
Wed, Aug 20 - Tue, Aug 26
SFO
San Francisco
AUS
Austin
$209 Roundtrip, found 1 hour ago
$209
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 20 from San Francisco to Austin, returning Tue, Aug 26, priced at $209 found 1 hour ago
United
Fri, Sep 12 - Sun, Sep 14
SFO
San Francisco
AUS
Austin
$219 Roundtrip, just found
$219
Roundtrip
just found
Select United flight, departing Fri, Sep 12 from San Francisco to Austin, returning Sun, Sep 14, priced at $219 just found
Flights from San Francisco (SFO) to Austin (AUS)
Origin airport
San Francisco Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
1501 mi
Average flight time
5 hours 40 mins

Frequently asked questions

How much is a United Airlines flight from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS)?
You can discover budget-friendly return United Airlines flights from $197 from SFO to AUS by organizing your results from "Price (lowest to highest)" on Expedia. Or search for options from $99 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SFO to AUS with United Airlines?
United Airlines flights to Austin are usually more affordable in the quieter months of January and December. Whether you need a one-way or round-trip ticket, you could land a better deal then.
What is the cheapest time to book flights from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS) with United Airlines?
Search for cheap United Airlines flights from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS) one to three months ahead of your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS)?
United Airlines has direct flights from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS), with 25 departures every week. Simply apply the "Nonstop" and "Airline" filters during your search on Expedia to see all direct United Airlines flights to AUS.
How long does it take to fly from SFO to AUS with United Airlines?
From takeoff till landing, a direct United Airlines flight from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS) takes around 3h 32m.
Which day of the week has the most United Airlines flights from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS)?
Sunday has the most United Airlines flights from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS). With 4 daily departures, this is a great day to book something that will fit your plans.
What is the earliest United Airlines flight from SFO to AUS?
Taking off from SFO at 7:40AM UTC-8, the earliest United Airlines flight to AUS lands at 1:11PM UTC-6. Flying early means you're less likely to experience cancellations.* Not an early riser? The last United Airlines flight from SFO to AUS departs at 6:27PM UTC-8 and touches down at 11:59PM UTC-6.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Austin?
United Airlines flights from San Francisco Intl. Airport (SFO) to Austin come in to Austin-Bergstrom Intl. Airport (AUS). This is the main gateway to this city.
Why fly with United Airlines from SFO to AUS?
Offering a rewarding loyalty program, United Airlines is a popular choice for many passengers journeying from SFO to AUS. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS)?
United Airlines generally uses Airbus A320 planes for flights from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS). This carrier also operates the Boeing 737-800 on this route. Remember that aircraft type can vary depending on operational demands, so the plane you board might be different on your travel date.
Can I change or cancel my United Airlines flight from San Francisco Intl. Airport (SFO) to Austin-Bergstrom Intl. Airport (AUS)?
Depending on your fare type, a fee is typically charged if you cancel or change your flight more than 24 hours after it's confirmed. To find plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when you search for flights. To learn more about changing or canceling your reservation, visit "Trips," select your flight and tick "Manage Booking."

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