CA $334 Cheap Flights from Portland (PDX) to Santa Rosa (STS)

View CA $334 flight on Wed, Aug. 6, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Santa Rosa, CA (STS-Sonoma County)

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Cheap flights from Portland (PDX) to Santa Rosa (STS)

Prices were available within the past 7 days and start at CA $334 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Portland (PDX) to Santa Rosa (STS)

February is typically the cheapest month to fly

From CA $199 - CA $498 per traveller.

Graph displaying average flight prices per month

Flight from Portland to Santa Rosa (PDX - STS) route information
Origin airport
Portland Intl.
Destination airport
Sonoma County
Distance
782 km
Average flight time
1 hour 38 mins

Portland to Windsor Flights

The easy way to book your flights from Portland to Santa Rosa 

With Expedia, it’s simple to find and book flights to Santa Rosa from Portland whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are Alaska Airlines, Hawaiian Airlines nonstop flights to Sonoma County, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Portland to Santa Rosa today, tomorrow, or this week.  

 

Save dollars with cheap flights from Portland Intl., PDX to Sonoma County, STS 

Sort your search results by price to find great deals on your flight from Portland to Santa Rosa—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Santa Rosa from Portland currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Santa Rosa  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Santa Rosa from Portland 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Santa Rosa with Expedia today.

Frequently asked questions

How much is a flight from Portland Intl. Airport (PDX) to STS?
Round-trip flights from Portland Airport to Sonoma County Airport start from . This is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book now to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Portland Airport to STS?
The majority of flights can be conveniently cancelled online, but whether you incur a fee differs between airlines. If you do have to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from PDX Airport to Sonoma County Airport that have flexible change policies?
Select our "No change fees" filter to find flexible travel options for your flight from Portland Intl. Airport (PDX) to Sonoma County Airport. This allows you to snag a great deal ahead of time and still have the freedom to make changes without any additional fees. Keep in mind that you'll need to cover the fare difference.
How many hours is the flight from Portland Intl. Airport (PDX) to Sonoma County Airport?
There are plenty of ways to make the 4 hours and 6 minutes between PDX and Sonoma County Airport go by faster. If you want to be productive, sort through your photos or clear out all those unwanted emails. A good snooze also helps pass the time!
How far is the flight from PDX to Sonoma County Airport?
With a flight distance of 790 kilometres, it's only a short hop from PDX Airport to Sonoma County Airport. It might be a quick flight, but it's still worth bringing along something to keep you entertained on board.
Which airlines fly direct from PDX to Sonoma County Airport?
Flying nonstop from Portland Airport to Sonoma County Airport (STS) is a breeze with Alaska Airlines (AS). This popular airline offers 30 flights each month.
Are PDX Airport to STS flight tickets cheaper when they're purchased at the last minute?
It is possible to score a great last-minute deal from PDX Airport to Sonoma County Airport, but it's also possible to miss out altogether! As many airlines publish prices up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares air carrier prices and updates flight deals often, so you can be sure you're always seeing the latest offers.

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