Cheap Flights from Sonoma County Airport (STS)

View £44 flight on Mon, 17 Aug 2026Opens in a new window

Popular airlines from Santa Rosa, CA (STS-Sonoma County)

  • Alaska Airlines

  • American Airlines

  • Southwest Airlines

  • Delta

  • Iberia

  • Japan Airlines

  • Finnair

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Flights from Sonoma County Airport

Prices were available within the past 7 days and start at £44 for one-way flights and £88 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, 17 Aug - Tue, 18 Aug
STS
Santa Rosa
SAN
San Diego
£88 Return, found 17 hours ago
£88
Return
found 17 hours ago
Select Alaska Airlines flight, departing Mon, 17 Aug from Santa Rosa to San Diego, returning Tue, 18 Aug, priced at £88 found 17 hours ago
Alaska Airlines
Sat, 3 Oct - Wed, 7 Oct
STS
Santa Rosa
SAN
San Diego
£98 Return, found 1 day ago
£98
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 3 Oct from Santa Rosa to San Diego, returning Wed, 7 Oct, priced at £98 found 1 day ago
Alaska Airlines
Thu, 10 Sept - Wed, 16 Sept
STS
Santa Rosa
SAN
San Diego
£107 Return, found 1 day ago
£107
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 10 Sept from Santa Rosa to San Diego, returning Wed, 16 Sept, priced at £107 found 1 day ago
Alaska Airlines
Sat, 14 Nov - Tue, 17 Nov
STS
Santa Rosa
LAS
Las Vegas
£116 Return, found 2 days ago
£116
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 14 Nov from Santa Rosa to Las Vegas, returning Tue, 17 Nov, priced at £116 found 2 days ago
Alaska Airlines
Thu, 8 Oct - Wed, 14 Oct
STS
Santa Rosa
SAN
San Diego
£116 Return, found 1 day ago
£116
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 8 Oct from Santa Rosa to San Diego, returning Wed, 14 Oct, priced at £116 found 1 day ago
Alaska Airlines
Mon, 17 Aug - Tue, 18 Aug
STS
Santa Rosa
SAN
San Diego
£117 Return, found 17 hours ago
£117
Return
found 17 hours ago
Select Alaska Airlines flight, departing Mon, 17 Aug from Santa Rosa to San Diego, returning Tue, 18 Aug, priced at £117 found 17 hours ago
Alaska Airlines
Wed, 28 Oct - Mon, 2 Nov
STS
Santa Rosa
LAS
Las Vegas
£128 Return, found 1 day ago
£128
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 28 Oct from Santa Rosa to Las Vegas, returning Mon, 2 Nov, priced at £128 found 1 day ago
Alaska Airlines
Mon, 17 Aug - Tue, 18 Aug
STS
Santa Rosa
SAN
San Diego
£132 Return, found 17 hours ago
£132
Return
found 17 hours ago
Select Alaska Airlines flight, departing Mon, 17 Aug from Santa Rosa to San Diego, returning Tue, 18 Aug, priced at £132 found 17 hours ago
Alaska Airlines
Wed, 19 Aug - Wed, 26 Aug
STS
Santa Rosa
LAX
Los Angeles
£133 Return, found 5 days ago
£133
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 19 Aug from Santa Rosa to Los Angeles, returning Wed, 26 Aug, priced at £133 found 5 days ago
American Airlines
Fri, 17 Jul - Sun, 19 Jul
STS
Santa Rosa
PDX
Portland
£736 Return, found 3 days ago
£736
Return
found 3 days ago
Select American Airlines flight, departing Fri, 17 Jul from Santa Rosa to Portland, returning Sun, 19 Jul, priced at £736 found 3 days ago

Frequently asked questions

What is the airport code for Sonoma County Airport (STS)?
Sonoma County Airport (STS) uses the airport code: STS.
How far is Sonoma County Airport (STS) from central Santa Rosa?
Step off the tarmac at Sonoma County Airport (STS) and then grab some keys from one of two Santa Rosa car rental offices on-site, Hertz or Sixt. With your own ride, getting to the heart of Santa Rosa will be a breeze. All you have to do is set your GPS and travel 7 mi to the southeast.
Does Sonoma County Airport have a hotel?
STS has no accommodation in the immediate area, but that doesn't mean all is lost. You should find someplace comfortable to stay before you jet off if you broaden your search. The Amazing Resort-like Estate Near Healdsburg, CA and the Experience an unforgettable holiday at this 3BR/3BA resort are fantastic choices just outside the airport. Book a room at either the evening before your flight and your departure gate will be a quick drive away. The Amazing Resort-like Estate Near Healdsburg, CA offers guests mountain views, a swimming pool and a barbecue grill. The Experience an unforgettable holiday at this 3BR/3BA resort also has convenient amenities like a barbecue grill, WiFi and an electric car charging station.
Are there private lounges in Sonoma County Airport (STS)?
Check Santa Rosa, CA (STS-Sonoma County)'s official website to find out what kind of amenities are available, including lounges. If you're looking for things to do before boarding your flight, hit the airport shops, grab a quick bite or drink, or just enjoy watching the planes take off and land.
What airlines fly out of Sonoma County Airport (STS)?
Secure a flight out of Sonoma County Airport (STS) with any of these quality domestic airlines and relax knowing your journey will be a smooth one:

  • Alaska Airlines
  • Avelo Airlines
  • American Airlines

How many flights per day fly out of STS?
On average, there are 15 flights out of Sonoma County Airport (STS) a day. Choose your destination and find the best deal with Expedia.
How to find cheap flights from STS with Expedia?
The cheapest flight from Santa Rosa, CA (STS-Sonoma County) was to San Diego (SAN) at £44. With Expedia, you can compare flights from all available airlines after you've entered your travel dates and destination. You can sort your results by price and also use the filters to the left. 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. One of the easiest ways to snag a cheap flight is to be flexible with when you travel. Start by searching for flights on the dates you'd like, then click on "Flexible dates" at the top of the page. This will reveal the cheapest prices for the days surrounding your trip. You can also filter your search results by specific airlines, departure and arrival times, included baggage and more.
Where can you fly to from Sonoma County Airport?
There's a range of exciting destinations available. Browse some of the Santa Rosa, CA (STS-Sonoma County) international flight deals further up the page for inspiration for your next getaway. Most domestic travellers head to Los Angeles, San Diego or Phoenix. Compare the prices between airlines, find incredible deals and secure the holiday of a lifetime for less.
What is the cancellation policy on flights and how do I cancel my flight on Expedia?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.

Travel information

Sonoma County Airport Information

Airport Name
Airport Location
Airport Code
Latitude
Longitude
Altitude
Los Angeles Intl.Los Angeles, USIATA: LAX, ICAO: KLAX, GPS Code: KLAX33.942501-118.40799738.10 meters

Los Angeles Intl., LAX airport, offers flights from multiple airline carriers to many popular global destinations. Above you'll find some useful information about Los Angeles’s airports that can help you in planning your next trip. Expedia offers flights from Los Angeles Intl. on multiple airline carriers, and makes it easy and affordable for you to book.

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