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.

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.

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$4,446 was the best price for a flight to Sonoma County in the last seven days.

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$4,446 and NT$33,357. Many lucky travelers nabbed one-way seats from Seattle (SEA) for as little as NT$2,222.

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.

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.

Flights to Sonoma County ranged from NT$4,446 to NT$33,357 in the last seven days. Generally, the sooner you book the better the price.

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.

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.