Cheap Flights to Sonoma County | Popular Routes to Sonoma County from HK$1,856

View HK$1,856 flight on Sat, 21 Feb 2026Opens in a new window

Popular airlines to Sonoma County

  • Alaska Airlines

  • American Airlines

  • Delta

  • Frontier Airlines

  • United

  • Southwest Airlines

  • JetBlue Airways

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Cheap round-trip flights to Sonoma County

Prices were available within the past 7 days and start at HK$1,856 for one-way flights and HK$3,335 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 21 Feb - Tue, 24 Feb
SAN
San Diego
OAK
Oakland
HK$3,335 Return, found 1 day ago
HK$3,335
Return
found 1 day ago
Select Delta flight, departing Sat, 21 Feb from San Diego to Oakland, returning Tue, 24 Feb, priced at HK$3,335 found 1 day ago
Delta
Sat, 21 Feb - Tue, 24 Feb
SAN
San Diego
OAK
Oakland
HK$3,808 Return, found 1 day ago
HK$3,808
Return
found 1 day ago
Select Delta flight, departing Sat, 21 Feb from San Diego to Oakland, returning Tue, 24 Feb, priced at HK$3,808 found 1 day ago
Delta
Thu, 19 Feb - Sun, 22 Feb
SAN
San Diego
OAK
Oakland
HK$3,905 Return, found 3 days ago
HK$3,905
Return
found 3 days ago
Select Delta flight, departing Thu, 19 Feb from San Diego to Oakland, returning Sun, 22 Feb, priced at HK$3,905 found 3 days ago
Delta
Sat, 21 Feb - Tue, 24 Feb
SAN
San Diego
OAK
Oakland
HK$4,270 Return, found 1 day ago
HK$4,270
Return
found 1 day ago
Select Delta flight, departing Sat, 21 Feb from San Diego to Oakland, returning Tue, 24 Feb, priced at HK$4,270 found 1 day ago
Delta
Thu, 19 Feb - Sun, 22 Feb
SAN
San Diego
OAK
Oakland
HK$4,367 Return, found 3 days ago
HK$4,367
Return
found 3 days ago
Select Delta flight, departing Thu, 19 Feb from San Diego to Oakland, returning Sun, 22 Feb, priced at HK$4,367 found 3 days ago
Delta
Thu, 19 Feb - Sun, 22 Feb
SAN
San Diego
OAK
Oakland
HK$4,733 Return, found 3 days ago
HK$4,733
Return
found 3 days ago
Select Delta flight, departing Thu, 19 Feb from San Diego to Oakland, returning Sun, 22 Feb, priced at HK$4,733 found 3 days ago
Delta
Thu, 19 Feb - Sun, 22 Feb
SAN
San Diego
OAK
Oakland
HK$4,829 Return, found 3 days ago
HK$4,829
Return
found 3 days ago
Select Delta flight, departing Thu, 19 Feb from San Diego to Oakland, returning Sun, 22 Feb, priced at HK$4,829 found 3 days ago
Delta
Fri, 20 Feb - Mon, 23 Feb
SAN
San Diego
OAK
Oakland
HK$5,055 Return, found 2 days ago
HK$5,055
Return
found 2 days ago
Select Delta flight, departing Fri, 20 Feb from San Diego to Oakland, returning Mon, 23 Feb, priced at HK$5,055 found 2 days ago
Delta
Thu, 19 Feb - Sun, 22 Feb
SAN
San Diego
OAK
Oakland
HK$5,077 Return, found 3 days ago
HK$5,077
Return
found 3 days ago
Select Delta flight, departing Thu, 19 Feb from San Diego to Oakland, returning Sun, 22 Feb, priced at HK$5,077 found 3 days ago
Delta
Fri, 20 Feb - Mon, 23 Feb
SAN
San Diego
OAK
Oakland
HK$5,292 Return, found 2 days ago
HK$5,292
Return
found 2 days ago
Select Delta flight, departing Fri, 20 Feb from San Diego to Oakland, returning Mon, 23 Feb, priced at HK$5,292 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$3,335 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$3,335 and HK$5,316. Many lucky travelers nabbed one-way seats from San Diego (SAN) for as little as HK$1,856.
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$3,335 to HK$5,316 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.

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About Sonoma County

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About Sonoma County

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