Cheap Flights to Sonoma County from NT$4,377

View NT$4,377 flight on Wed, 2026/7/8Opens in a new window

Popular airlines to Sonoma County

  • Alaska Airlines

  • American Airlines

  • Frontier Airlines

  • Delta

  • United

  • JetBlue Airways

  • Southwest Airlines

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How much is the cheapest flight to Sonoma County?

Prices were available within the past 7 days and start at NT$4,377 for one-way flights and NT$15,794 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, May 14 - Thu, May 21
SEA
Seattle
OAK
Oakland
NT$15,794 Roundtrip, found 21 hours ago
NT$15,794
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Thu, May 14 from Seattle to Oakland, returning Thu, May 21, priced at NT$15,794 found 21 hours ago
Alaska Airlines
Sat, May 16 - Thu, May 21
SEA
Seattle
OAK
Oakland
NT$16,652 Roundtrip, found 21 hours ago
NT$16,652
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Sat, May 16 from Seattle to Oakland, returning Thu, May 21, priced at NT$16,652 found 21 hours ago
Alaska Airlines
Tue, May 12 - Thu, May 21
SEA
Seattle
OAK
Oakland
NT$17,918 Roundtrip, found 21 hours ago
NT$17,918
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Tue, May 12 from Seattle to Oakland, returning Thu, May 21, priced at NT$17,918 found 21 hours ago
Alaska Airlines
Thu, May 14 - Fri, May 15
SEA
Seattle
OAK
Oakland
NT$18,644 Roundtrip, found 21 hours ago
NT$18,644
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Thu, May 14 from Seattle to Oakland, returning Fri, May 15, priced at NT$18,644 found 21 hours ago
Alaska Airlines
Sat, May 16 - Tue, May 19
SEA
Seattle
OAK
Oakland
NT$19,503 Roundtrip, found 21 hours ago
NT$19,503
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Sat, May 16 from Seattle to Oakland, returning Tue, May 19, priced at NT$19,503 found 21 hours ago
Delta
Tue, May 19 - Wed, May 20
SEA
Seattle
OAK
Oakland
NT$19,512 Roundtrip, found 6 days ago
NT$19,512
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, May 19 from Seattle to Oakland, returning Wed, May 20, priced at NT$19,512 found 6 days ago
Delta
Tue, May 19 - Wed, May 20
SEA
Seattle
OAK
Oakland
NT$20,494 Roundtrip, found 6 days ago
NT$20,494
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, May 19 from Seattle to Oakland, returning Wed, May 20, priced at NT$20,494 found 6 days ago
Delta
Fri, May 15 - Mon, May 18
SEA
Seattle
OAK
Oakland
NT$20,757 Roundtrip, found 21 hours ago
NT$20,757
Roundtrip
found 21 hours ago
Select Delta flight, departing Fri, May 15 from Seattle to Oakland, returning Mon, May 18, priced at NT$20,757 found 21 hours ago
Alaska Airlines
Tue, May 12 - Fri, May 15
SEA
Seattle
OAK
Oakland
NT$20,768 Roundtrip, found 21 hours ago
NT$20,768
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Tue, May 12 from Seattle to Oakland, returning Fri, May 15, priced at NT$20,768 found 21 hours ago
Delta
Tue, May 19 - Wed, May 20
SEA
Seattle
OAK
Oakland
NT$21,443 Roundtrip, found 6 days ago
NT$21,443
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, May 19 from Seattle to Oakland, returning Wed, May 20, priced at NT$21,443 found 6 days ago
Aeromexico
Thu, May 14 - Thu, May 21
GDL
Guadalajara
OAK
Oakland
NT$34,868 Roundtrip, found 4 hours ago
NT$34,868
Roundtrip
found 4 hours ago
Select Aeromexico flight, departing Thu, May 14 from Guadalajara to Oakland, returning Thu, May 21, priced at NT$34,868 found 4 hours 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, NT$15,794 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 NT$15,794 and NT$34,868. Many lucky travelers nabbed one-way seats from Seattle (SEA) for as little as NT$4,377.
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 NT$15,794 to NT$34,868 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 55ºF and 80ºF 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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