$88 Cheap Flights from Portland (PDX) to Santa Rosa (STS)

View $88 flight on Fri, Jan 30, 2026Opens in a new window

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

Cheap Flights from Portland to Santa Rosa (PDX-STS)

Prices were available within the past 7 days and start at $88 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Dec 3 - Sat, Dec 6
PDX
Portland
STS
Santa Rosa
$157 Roundtrip, found 16 hours ago
$157
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Portland to Santa Rosa, returning Sat, Dec 6, priced at $157 found 16 hours ago
Hawaiian Airlines
Mon, Nov 17 - Sat, Nov 22
PDX
Portland
STS
Santa Rosa
$167 Roundtrip, found 5 days ago
$167
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Mon, Nov 17 from Portland to Santa Rosa, returning Sat, Nov 22, priced at $167 found 5 days ago
Alaska Airlines
Sat, Jan 3 - Tue, Jan 6
PDX
Portland
STS
Santa Rosa
$187 Roundtrip, found 4 hours ago
$187
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Jan 3 from Portland to Santa Rosa, returning Tue, Jan 6, priced at $187 found 4 hours ago
Alaska Airlines
Sat, Nov 22 - Tue, Dec 2
PDX
Portland
STS
Santa Rosa
$187 Roundtrip, found 8 hours ago
$187
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Sat, Nov 22 from Portland to Santa Rosa, returning Tue, Dec 2, priced at $187 found 8 hours ago
Hawaiian Airlines
Sun, Dec 7 - Fri, Dec 12
PDX
Portland
STS
Santa Rosa
$191 Roundtrip, found 16 hours ago
$191
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Sun, Dec 7 from Portland to Santa Rosa, returning Fri, Dec 12, priced at $191 found 16 hours ago
Hawaiian Airlines
Mon, Dec 22 - Wed, Dec 31
PDX
Portland
STS
Santa Rosa
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Mon, Dec 22 from Portland to Santa Rosa, returning Wed, Dec 31, priced at $197 found 2 days ago
Alaska Airlines
Thu, Jan 1 - Thu, Jan 8
PDX
Portland
STS
Santa Rosa
$206 Roundtrip, found 10 hours ago
$206
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Thu, Jan 1 from Portland to Santa Rosa, returning Thu, Jan 8, priced at $206 found 10 hours ago
Alaska Airlines
Sat, Jan 3 - Tue, Jan 6
PDX
Portland
STS
Santa Rosa
$210 Roundtrip, found 4 hours ago
$210
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Jan 3 from Portland to Santa Rosa, returning Tue, Jan 6, priced at $210 found 4 hours ago
Southwest Airlines
Mon, Apr 13 - Mon, Apr 20
PDX
Portland
STS
Santa Rosa
$328 Roundtrip, found 1 hour ago
$328
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Mon, Apr 13 from Portland to Santa Rosa, returning Mon, Apr 20, priced at $328 found 1 hour ago
American Airlines
Sat, May 2 - Mon, May 4
PDX
Portland
STS
Santa Rosa
$595 Roundtrip, found 1 day ago
$595
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, May 2 from Portland to Santa Rosa, returning Mon, May 4, priced at $595 found 1 day ago

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

December is typically the cheapest month to fly

From $141 - $386 per traveler.

Alternative airports near Santa Rosa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sonoma County STS. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $317
STS
Sonoma County
CheapestClosest
Average driving time to city center10 min
Flights from $317

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Sonoma County Airport (STS) cost?
Lock in a cheap one-way flight from $88 or cheap return flight from $157 from Portland Intl. Airport (PDX) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
The cheapest month to fly from PDX to STS is December, when there's less demand. Off-peak season is usually when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
When heading out of Portland Intl. Airport (PDX), you can hop on a direct flight to Sonoma County Airport (STS) with Alaska Airlines.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from PDX to STS. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
On average, only 1 direct flight departs daily from Portland Intl. Airport (PDX) to Sonoma County Airport (STS). Need more options? Use Expedia's filter tool to discover flights with layovers and explore a new city along the way.
What are the most popular departure times for flights from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
More passengers fly between PDX and STS at 7 AM than at any other time. Rather go when it's quieter? Pick a flight outside the busiest times and you could save on your ticket as well.
What day of the week has the most flights from PDX to STS?
Friday offers the most flights from Portland Intl. Airport (PDX) to Sonoma County Airport (STS). Consider taking off on this day and you'll have a greater chance of finding a departure that works with your plans.
What is the earliest flight from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
The earliest flight jetting off from Portland Intl. Airport (PDX) is at around 7:44AM UTC-8. Hop on this flight and you'll land at Sonoma County Airport (STS) at approximately 9:21AM UTC-8. The total travel time is 1h 37m.
How long does it take to fly from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
It takes roughly 1 hour and 37 minutes to fly the 490 mi from PDX to STS.
What airline has the least delays from PDX to STS?
Alaska Airlines has the best performance for on-time direct flights from Portland Intl. Airport (PDX) to Sonoma County Airport (STS), with an on-time score of 84%. Use the Expedia App to view your journey status before you head off and receive notifications about any trip changes.
What is the best time to fly from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
To avoid potential delays on the Portland Intl. Airport (PDX) to Sonoma County Airport (STS) route, fly before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Santa Rosa from Portland Intl. Airport (PDX)?
You can land at any one of these Santa Rosa airports after your direct flight from Portland Intl. Airport (PDX):

  • San Francisco Intl. Airport (SFO)
  • Oakland Intl. Airport (OAK)
  • Sonoma County Airport (STS)

Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Sonoma County Airport (STS) last-minute?
Holding off until just before your trip to book a flight from PDX to STS often results in higher prices. While you may come across some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans for a better chance of scoring a bargain.
Is it cheaper to book a PDX to STS flight and hotel package?
Compared with arranging flights and hotels separately, booking a PDX to STS flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place takes the hassle out of planning your trip. Simply pick your flights and choose from our extensive range of hotels, then personalize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Sonoma County Airport (STS)?
In most instances, you're able to reschedule or cancel your PDX to STS flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want more details, head to our Customer Service portal.

Travel information

Origin airport
Portland Intl.
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines, Southwest Airlines
Roundtrip price
$156
Distance
489 mi
Average flight time
1 hour 49 mins

Book with confidence

Portland to Santa Rosa Flights

The cheapest times to fly from Portland to Santa Rosa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Santa Rosa are during the month of December. You can find some of the cheapest flights from Portland to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Santa Rosa

Sunday is one of the best days to book for cheap flights from Portland to Santa Rosa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Santa Rosa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $88 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Santa Rosa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Santa Rosa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Portland to Santa Rosa Flights

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*Available to One Key members.