$125 Cheap Flights from Austin (AUS) to Santa Rosa (STS)

View $125 flight on Tue, Jan 6, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $125 for one-way flights and $271 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Feb 2 - Thu, Feb 5
AUS
Austin
STS
Santa Rosa
$271 Roundtrip, found 4 days ago
$271
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Austin to Santa Rosa, returning Thu, Feb 5, priced at $271 found 4 days ago
Hawaiian Airlines
Tue, Dec 9 - Tue, Jan 6
AUS
Austin
STS
Santa Rosa
$283 Roundtrip, found 1 day ago
$283
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Dec 9 from Austin to Santa Rosa, returning Tue, Jan 6, priced at $283 found 1 day ago
Alaska Airlines
Wed, Nov 19 - Sat, Nov 22
AUS
Austin
STS
Santa Rosa
$284 Roundtrip, found 4 days ago
$284
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Nov 19 from Austin to Santa Rosa, returning Sat, Nov 22, priced at $284 found 4 days ago
Alaska Airlines
Sat, Dec 6 - Tue, Jan 6
AUS
Austin
STS
Santa Rosa
$290 Roundtrip, found 1 day ago
$290
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Austin to Santa Rosa, returning Tue, Jan 6, priced at $290 found 1 day ago
Alaska Airlines
Tue, Nov 18 - Sat, Dec 6
AUS
Austin
STS
Santa Rosa
$292 Roundtrip, found 3 days ago
$292
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Nov 18 from Austin to Santa Rosa, returning Sat, Dec 6, priced at $292 found 3 days ago
Hawaiian Airlines
Mon, Jan 5 - Wed, Jan 21
AUS
Austin
STS
Santa Rosa
$296 Roundtrip, found 5 days ago
$296
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Mon, Jan 5 from Austin to Santa Rosa, returning Wed, Jan 21, priced at $296 found 5 days ago
Alaska Airlines
Sat, Jan 24 - Sat, Jan 31
AUS
Austin
STS
Santa Rosa
$297 Roundtrip, found 22 hours ago
$297
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Austin to Santa Rosa, returning Sat, Jan 31, priced at $297 found 22 hours ago
Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
AUS
Austin
STS
Santa Rosa
$298 Roundtrip, found 2 days ago
$298
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Austin to Santa Rosa, returning Sat, Dec 13, priced at $298 found 2 days ago
Alaska Airlines
Sat, Jan 24 - Sat, Jan 31
AUS
Austin
STS
Santa Rosa
$300 Roundtrip, found 22 hours ago
$300
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Austin to Santa Rosa, returning Sat, Jan 31, priced at $300 found 22 hours ago
American Airlines
Wed, Jan 14 - Tue, Jan 20
AUS
Austin
STS
Santa Rosa
$389 Roundtrip, found 3 days ago
$389
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jan 14 from Austin to Santa Rosa, returning Tue, Jan 20, priced at $389 found 3 days 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
$270
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 February. 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 $125 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?
Snag a cheap one-way flight from $125 or cheap return flight from $271 from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS)?
February is the cheapest month to fly from AUS to STS. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to Sonoma County Airport (STS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest AUS to STS flight.
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.

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*Available to One Key members.