A vineyard with rows of grapevines under a clear sky.

Cheap Flights to Sonoma County | Popular Routes to Sonoma County from HK$703

View HK$703 flight on Tue, 17 Nov 2026Opens in a new window

Popular airlines to Sonoma County

  • Alaska Airlines

  • American Airlines

  • Frontier Airlines

  • Delta

  • United

  • JetBlue Airways

  • Southwest Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Sonoma County

Prices were available within the past 7 days and start at HK$703 for one-way flights and HK$1,395 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 1 Nov - Sat, 7 Nov
SLC
Salt Lake City
STS
Santa Rosa
HK$1,395 Return, found 1 day ago
HK$1,395
Return
found 1 day ago
Select Delta flight, departing Sun, 1 Nov from Salt Lake City to Santa Rosa, returning Sat, 7 Nov, priced at HK$1,395 found 1 day ago
American Airlines
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
STS
Santa Rosa
HK$1,913 Return, found 3 hours ago
HK$1,913
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 22 Aug from Los Angeles to Santa Rosa, returning Sat, 29 Aug, priced at HK$1,913 found 3 hours ago
American Airlines
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
STS
Santa Rosa
HK$1,943 Return, found 3 hours ago
HK$1,943
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 22 Aug from Los Angeles to Santa Rosa, returning Sat, 29 Aug, priced at HK$1,943 found 3 hours ago
American Airlines
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
STS
Santa Rosa
HK$1,991 Return, found 3 hours ago
HK$1,991
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 22 Aug from Los Angeles to Santa Rosa, returning Sat, 29 Aug, priced at HK$1,991 found 3 hours ago
American Airlines
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
STS
Santa Rosa
HK$2,021 Return, found 3 hours ago
HK$2,021
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 22 Aug from Los Angeles to Santa Rosa, returning Sat, 29 Aug, priced at HK$2,021 found 3 hours ago
American Airlines
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
STS
Santa Rosa
HK$2,100 Return, found 3 hours ago
HK$2,100
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 22 Aug from Los Angeles to Santa Rosa, returning Sat, 29 Aug, priced at HK$2,100 found 3 hours ago
American Airlines
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
STS
Santa Rosa
HK$2,131 Return, found 3 hours ago
HK$2,131
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 22 Aug from Los Angeles to Santa Rosa, returning Sat, 29 Aug, priced at HK$2,131 found 3 hours ago
Delta
Sun, 1 Nov - Sat, 7 Nov
SLC
Salt Lake City
STS
Santa Rosa
HK$2,183 Return, found 1 day ago
HK$2,183
Return
found 1 day ago
Select Delta flight, departing Sun, 1 Nov from Salt Lake City to Santa Rosa, returning Sat, 7 Nov, priced at HK$2,183 found 1 day ago
American Airlines
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
STS
Santa Rosa
HK$2,239 Return, found 3 hours ago
HK$2,239
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 22 Aug from Los Angeles to Santa Rosa, returning Sat, 29 Aug, priced at HK$2,239 found 3 hours ago
Alaska Airlines
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
STS
Santa Rosa
HK$2,846 Return, found 3 hours ago
HK$2,846
Return
found 3 hours ago
Select Alaska Airlines flight, departing Sat, 22 Aug from Los Angeles to Santa Rosa, returning Sat, 29 Aug, priced at HK$2,846 found 3 hours ago

Trending flights to Sonoma County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Sat, 21 Nov - Sat, 28 Nov
HKG
Hong Kong SAR
OAK
Oakland
HK$9,005 Return, found 2 days ago
HK$9,005
Return
found 2 days ago
Select EVA Airways flight, departing Sat, 21 Nov from Hong Kong SAR to Oakland, returning Sat, 28 Nov, priced at HK$9,005 found 2 days ago

Frequently asked questions

How do I find cheap flights to Sonoma County that have flexible change policies?
It's as easy as counting 1-2-3 with Expedia. Step 1: Enter your travel dates and destination and press "Search." Second step: Check "No change fee" directly underneath the "Flexible change policies" subheading on the top left of your screen. Step 3. Grab your cheap and flexible fare to Sonoma County.
Which airlines fly to Sonoma County?
When you're ready to lock in your ticket to or near Sonoma County, these leading airlines look forward to welcoming you on board:

  • Southwest Airlines - 2,314 flights to or near Sonoma County each month, including 2,314 flights to Oakland Intl. Airport (OAK) per month.
  • Alaska Airlines - 434 flights to or near Sonoma County each month, including 264 flights to Sonoma County Airport (STS) per month.
  • Spirit Airlines - 265 flights to or near Sonoma County each month, including 265 flights to Oakland Intl. Airport (OAK) per month.

How can I find cheap tickets to Sonoma County?
A helpful strategy for walking away with cheap airfares is to be flexible with your travel dates. Begin with searching for your flight to Sonoma County, then click on the "flexible dates" box to compare prices for nearby days. Want another tip? Book ahead of time. To give you an idea of fares, HK$1,395 was the best price for a flight to Sonoma County in the last seven days.
How much is a flight to Sonoma County?
There were a lot of low-cost fares up for grabs in the last seven days, with the cost of a return flight to Sonoma County ranging between HK$1,395 and HK$9,005. Many lucky travelers nabbed one-way seats from Salt Lake City (SLC) for as little as HK$703.
What are the most popular airports to fly into in Sonoma County?
Which of these two Sonoma County airports you'll touch down at will depend largely on your chosen carrier and what you plan to see in the region:

  • Oakland Intl. Airport (OAK) - 3,086 flights per month.
  • Sonoma County Airport (STS) - 356 flights per month.

When is the cheapest time to fly to Sonoma County?
Fly out on a Tuesday to boost your odds of securing the cheapest deal to Sonoma County. Mondays are usually the second most affordable day to take off. Saturday is generally the most expensive day to fly anywhere.
How much is a plane ticket to Sonoma County?
Flights to Sonoma County ranged from HK$1,395 to HK$9,005 in the last seven days. Generally, the sooner you book the better the price.
What is the best time to go to Sonoma County?
Summer begins June 20 in the Northern Hemisphere, and these warmer months are a good time to visit the exciting Sonoma County city of Santa Rosa. Average temperatures range between 13ºC and 27ºC across the season. The biggest crowds can be found here in March, April and July.
What months are the cheapest to book a flight to Sonoma County?
To secure a fabulous deal to Sonoma County, try to book during the month of February when the price of tickets are at their cheapest. What time of year is expensive? In the United States, it's the festive month of December.

Book with confidence

About Sonoma County

Expedia offers flights to Sonoma County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Sonoma County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Sonoma County
*Available to Expedia members.