$139 Cheap Flights from Austin (AUS) to Santa Rosa (STS)

View $139 flight on Wed, Sep 17, 2025Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Santa Rosa, CA (STS-Sonoma County)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Austin to Santa Rosa (AUS-STS)

Prices were available within the past 7 days and start at $139 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Sep 2 - Sat, Sep 6
AUS
Austin
STS
Santa Rosa
$258 Roundtrip, found 6 days ago
$258
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 2 from Austin to Santa Rosa, returning Sat, Sep 6, priced at $258 found 6 days ago
Alaska Airlines
Wed, Sep 10 - Sat, Sep 13
AUS
Austin
STS
Santa Rosa
$279 Roundtrip, found 15 hours ago
$279
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Wed, Sep 10 from Austin to Santa Rosa, returning Sat, Sep 13, priced at $279 found 15 hours ago
Hawaiian Airlines
Tue, Sep 9 - Tue, Sep 16
AUS
Austin
STS
Santa Rosa
$280 Roundtrip, found 1 day ago
$280
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Sep 9 from Austin to Santa Rosa, returning Tue, Sep 16, priced at $280 found 1 day ago
Hawaiian Airlines
Mon, Sep 8 - Tue, Sep 16
AUS
Austin
STS
Santa Rosa
$282 Roundtrip, found 1 day ago
$282
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Sep 8 from Austin to Santa Rosa, returning Tue, Sep 16, priced at $282 found 1 day ago
Hawaiian Airlines
Thu, Sep 4 - Sat, Sep 6
AUS
Austin
STS
Santa Rosa
$290 Roundtrip, found 6 days ago
$290
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Thu, Sep 4 from Austin to Santa Rosa, returning Sat, Sep 6, priced at $290 found 6 days ago
Hawaiian Airlines
Tue, Sep 2 - Mon, Sep 8
AUS
Austin
STS
Santa Rosa
$296 Roundtrip, found 6 days ago
$296
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 2 from Austin to Santa Rosa, returning Mon, Sep 8, priced at $296 found 6 days ago
Alaska Airlines
Sat, Sep 6 - Sat, Sep 13
AUS
Austin
STS
Santa Rosa
$298 Roundtrip, found 4 hours ago
$298
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Sep 6 from Austin to Santa Rosa, returning Sat, Sep 13, priced at $298 found 4 hours ago
Hawaiian Airlines
Tue, Sep 9 - Fri, Sep 12
AUS
Austin
STS
Santa Rosa
$300 Roundtrip, found 1 day ago
$300
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Sep 9 from Austin to Santa Rosa, returning Fri, Sep 12, priced at $300 found 1 day ago
Hawaiian Airlines
Mon, Sep 8 - Fri, Sep 12
AUS
Austin
STS
Santa Rosa
$302 Roundtrip, found 1 day ago
$302
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Sep 8 from Austin to Santa Rosa, returning Fri, Sep 12, priced at $302 found 1 day ago
American Airlines
Sat, Sep 13 - Wed, Sep 17
AUS
Austin
STS
Santa Rosa
$489 Roundtrip, found 5 hours ago
$489
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Sat, Sep 13 from Austin to Santa Rosa, returning Wed, Sep 17, priced at $489 found 5 hours ago
Flights from Austin (AUS) to Santa Rosa (STS)
Origin airport
Austin-Bergstrom Intl.
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$258
Distance
1538 mi

Austin to Santa Rosa Flights

The cheapest times to fly from Austin to Santa Rosa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Austin to Santa Rosa are during the month of September. You can find some of the cheapest flights from Austin to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Austin to Santa Rosa

Sunday is one of the best days to book for cheap flights from Austin to Santa Rosa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Austin to Santa Rosa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Austin to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $139 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Austin to Santa Rosa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Austin to Santa Rosa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS) cost?
Discover the latest flight deals from AUS to STS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from AUS to STS?
The cheapest flights from AUS to STS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from AUS to STS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from AUS to STS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS)?
You'll need to take a flight with a layover if you're traveling from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from AUS to STS?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS)?
Book a flight from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Santa Rosa from Austin-Bergstrom Intl. Airport (AUS)?
If you're catching a direct flight from Austin-Bergstrom Intl. Airport (AUS) to Santa Rosa, you can touch down at either San Francisco Intl. Airport (SFO) or Oakland Intl. Airport (OAK).
Is it cheaper to buy a plane ticket from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS) last-minute?
Holding off until right before your break to book a ticket from AUS to STS generally means paying more. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary for the best chance of landing a bargain.
Is it cheaper to book an AUS to STS flight and hotel package?
Opting for an AUS to STS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our extensive range of hotels and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS)?
Usually, it's possible to cancel or reschedule your AUS to STS flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.