Cheap Flights to Sonoma County | Popular Routes to Sonoma County from HK$931

View HK$931 flight on Tue, 17 Mar 2026Opens in a new window

Popular airlines to Sonoma County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Alaska Airlines

    Alaska Airlines

  • Frontier Airlines

    Frontier Airlines

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

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Cheap round-trip flights to Sonoma County

Prices were available within the past 7 days and start at HK$931 for one-way flights and HK$4,148 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 28 Feb - Sat, 7 Mar
IAH
Houston
STS
Santa Rosa
HK$4,148 Return, found 1 day ago
HK$4,148
Return
found 1 day ago
Select American Airlines flight, departing Sat, 28 Feb from Houston to Santa Rosa, returning Sat, 7 Mar, priced at HK$4,148 found 1 day ago
American Airlines
Sat, 7 Feb - Sun, 8 Feb
SEA
Seattle
STS
Santa Rosa
HK$4,933 Return, found 1 day ago
HK$4,933
Return
found 1 day ago
Select American Airlines flight, departing Sat, 7 Feb from Seattle to Santa Rosa, returning Sun, 8 Feb, priced at HK$4,933 found 1 day ago
EVA Airways
Fri, 30 Jan - Tue, 3 Feb
HKG
Hong Kong SAR
STS
Santa Rosa
HK$6,399 Return, found 23 hours ago
HK$6,399
Return
found 23 hours ago
Select EVA Airways flight, departing Fri, 30 Jan from Hong Kong SAR to Santa Rosa, returning Tue, 3 Feb, priced at HK$6,399 found 23 hours ago
China Airlines
Sat, 23 May - Sat, 6 Jun
HKG
Hong Kong SAR
OAK
Oakland
HK$6,419 Return, found 3 days ago
HK$6,419
Return
found 3 days ago
Select China Airlines flight, departing Sat, 23 May from Hong Kong SAR to Oakland, returning Sat, 6 Jun, priced at HK$6,419 found 3 days ago
EVA Airways
Thu, 26 Feb - Thu, 5 Mar
HKG
Hong Kong SAR
OAK
Oakland
HK$6,549 Return, found 14 hours ago
HK$6,549
Return
found 14 hours ago
Select EVA Airways flight, departing Thu, 26 Feb from Hong Kong SAR to Oakland, returning Thu, 5 Mar, priced at HK$6,549 found 14 hours ago
EVA Airways
Fri, 30 Jan - Tue, 3 Feb
HKG
Hong Kong SAR
STS
Santa Rosa
HK$6,639 Return, found 23 hours ago
HK$6,639
Return
found 23 hours ago
Select EVA Airways flight, departing Fri, 30 Jan from Hong Kong SAR to Santa Rosa, returning Tue, 3 Feb, priced at HK$6,639 found 23 hours ago
EVA Airways
Fri, 30 Jan - Tue, 3 Feb
HKG
Hong Kong SAR
STS
Santa Rosa
HK$6,709 Return, found 23 hours ago
HK$6,709
Return
found 23 hours ago
Select EVA Airways flight, departing Fri, 30 Jan from Hong Kong SAR to Santa Rosa, returning Tue, 3 Feb, priced at HK$6,709 found 23 hours ago
EVA Airways
Thu, 26 Feb - Thu, 5 Mar
HKG
Hong Kong SAR
OAK
Oakland
HK$6,789 Return, found 14 hours ago
HK$6,789
Return
found 14 hours ago
Select EVA Airways flight, departing Thu, 26 Feb from Hong Kong SAR to Oakland, returning Thu, 5 Mar, priced at HK$6,789 found 14 hours ago
Delta
Thu, 26 Feb - Thu, 5 Mar
HKG
Hong Kong SAR
OAK
Oakland
HK$10,453 Return, found 14 hours ago
HK$10,453
Return
found 14 hours ago
Select Delta flight, departing Thu, 26 Feb from Hong Kong SAR to Oakland, returning Thu, 5 Mar, priced at HK$10,453 found 14 hours ago
Korean Air
Thu, 26 Feb - Thu, 5 Mar
HKG
Hong Kong SAR
OAK
Oakland
HK$11,677 Return, found 14 hours ago
HK$11,677
Return
found 14 hours ago
Select Korean Air flight, departing Thu, 26 Feb from Hong Kong SAR to Oakland, returning Thu, 5 Mar, priced at HK$11,677 found 14 hours ago

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.

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$4,148 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$4,148 and HK$11,677. Many lucky travelers nabbed one-way seats from Seattle (SEA) for as little as HK$931.
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$4,148 to HK$11,677 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.

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
Fri, 30 Jan - Tue, 3 Feb
HKG
Hong Kong SAR
STS
Santa Rosa
HK$6,399 Return, found 23 hours ago
HK$6,399
Return
found 23 hours ago
Select EVA Airways flight, departing Fri, 30 Jan from Hong Kong SAR to Santa Rosa, returning Tue, 3 Feb, priced at HK$6,399 found 23 hours ago
*Available to Expedia members.