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Santa Rosa

$89+ Cheap flights from Portland to Santa Rosa (PDX - STS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STS
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Find cheap flights from Portland to Santa Rosa with Cheapflights

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Cheapflights Tip: The best prices from Portland to Santa Rosa Sonoma County are usually found in January or April, booked 87 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Portland to Santa Rosa

Cheapest flights from Portland to Santa Rosa
Explore the most affordable flight options available from Portland to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/113:00 pm
PDX
-
STS
Nonstop1h 47m
Alaska Airlines
Wed 3/187:30 am
STS
-
PDX
Nonstop1h 40m
Alaska Airlines
Deal found 2/9$157
This Alaska Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 am
PDX
-
STS
1 stop4h 32m
Alaska Airlines
Tue 3/177:57 pm
STS
-
PDX
1 stop3h 47m
Alaska Airlines
Deal found 2/11$177
This Alaska Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/249:35 pm
PDX
-
STS
Nonstop1h 40m
Alaska Airlines
Wed 3/257:30 am
STS
-
PDX
Nonstop1h 40m
Alaska Airlines
Deal found 2/9$197
This Alaska Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:00 am
PDX
-
STS
Nonstop1h 49m
Alaska Airlines
Wed 5/208:20 am
STS
-
PDX
1 stop8h 29m
Alaska Airlines
Deal found 2/11$201
This Alaska Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/89:35 pm
PDX
-
STS
Nonstop1h 40m
Alaska Airlines
Mon 4/132:12 pm
STS
-
PDX
1 stop19h 16m
Alaska Airlines
Deal found 2/9$210
This Alaska Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/127:15 am
PDX
-
STS
Nonstop1h 59m
Alaska Airlines
Thu 3/197:05 am
STS
-
PDX
1 stop6h 32m
Alaska Airlines
Deal found 2/11$217
This Southwest deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:45 am
PDX
-
STS
1 stop10h 25m
Southwest
Mon 4/134:40 pm
STS
-
PDX
2 stops8h 15m
Southwest
Deal found 2/9$218
This Alaska Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/249:35 pm
PDX
-
STS
Nonstop1h 40m
Alaska Airlines
Tue 3/316:53 pm
STS
-
PDX
1 stop13h 17m
Alaska Airlines
Deal found 2/9$230
This Alaska Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:35 pm
PDX
-
STS
Nonstop1h 40m
Alaska Airlines
Mon 4/1312:10 pm
STS
-
PDX
1 stop25h 27m
Alaska Airlines
Deal found 2/10$231
This Alaska Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/249:35 pm
PDX
-
STS
Nonstop1h 40m
Alaska Airlines
Mon 3/306:53 pm
STS
-
PDX
1 stop13h 17m
Alaska Airlines
Deal found 2/9$235

Find flight deals from Portland to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Santa Rosa (STS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$157
(Alaska Airlines)

One-way from

$89
(Alaska Airlines)

Popular in

March

Cheapest in

January

Average price

$287

Good round-trip deal

$237 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for Portland-Santa Rosa Sonoma County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Santa Rosa Sonoma County flights.
Search Deals
From Portland to Santa Rosa Sonoma County
Search Deals
One-way flight from Portland to Santa Rosa Sonoma County
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Portland to Santa Rosa Sonoma County.
Search Deals
Price to beat on a one-way flight from Portland to Santa Rosa Sonoma County.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Santa Rosa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Portland to Santa Rosa that are best for you.

Fly from

Portland

Fly to

Santa Rosa

Route

Depart

Return

Price

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Wed 4/8

9:35 pm-11:15 pm

Nonstop1h 40m

Santa Rosa Sonoma County

Mon 4/13

7:30 am-9:10 am

Nonstop1h 40m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Thu 3/12

7:15 am-9:14 am

Nonstop1h 59m

Santa Rosa Sonoma County

Wed 3/18

2:56 pm-4:39 pm

Nonstop1h 43m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Tue 3/10

3:00 pm-4:47 pm

Nonstop1h 47m

Santa Rosa Sonoma County

Thu 3/19

2:56 pm-4:39 pm

Nonstop1h 43m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Tue 3/10

3:00 pm-4:47 pm

Nonstop1h 47m

Santa Rosa Sonoma County

Wed 3/18

2:56 pm-4:39 pm

Nonstop1h 43m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Tue 3/10

7:15 am-9:14 am

Nonstop1h 59m

Santa Rosa Sonoma County

Tue 3/17

6:50 pm-8:36 pm

Nonstop1h 46m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Wed 3/11

3:00 pm-4:47 pm

Nonstop1h 47m

Santa Rosa Sonoma County

Wed 3/18

7:30 am-9:10 am

Nonstop1h 40m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Wed 3/11

3:00 pm-4:47 pm

Nonstop1h 47m

Santa Rosa Sonoma County

Thu 3/19

7:02 pm-8:45 pm

Nonstop1h 43m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Wed 3/11

3:52 pm-9:52 pm

1 stop6h 00m

Santa Rosa Sonoma County

Tue 3/17

7:57 pm-11:44 pm

1 stop3h 47m

$177

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Thu 5/14

9:45 pm-11:30 pm

Nonstop1h 45m

Santa Rosa Sonoma County

Wed 5/20

8:20 am-1:43 pm

1 stop5h 23m

$187

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Thu 4/9

9:35 pm-11:15 pm

Nonstop1h 40m

Santa Rosa Sonoma County

Mon 4/13

7:30 am-9:10 am

Nonstop1h 40m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 15 results
1
2

Compare providers for flights from Portland to Santa Rosa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Santa Rosa in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Santa Rosa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Santa Rosa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Santa Rosa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Santa Rosa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Santa Rosa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Santa Rosa

How far ahead should I book a flight from Portland to Santa Rosa?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Santa Rosa. Price data was last updated on February 6, 2026.

The price you pay for your flight from Portland to Santa Rosa may vary depending on when you book. For the best chance of a lower fare, look to book 33 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Santa Rosa?

Currently, July is the cheapest month in which you can book a flight from Portland to Santa Rosa (average of $66). Flying from Portland to Santa Rosa in March is currently the most expensive (average of $115). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to STS?

Find hourly flight availability from Portland to Santa Rosa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 12, 2026.

It’s optimal to fly from Portland to Santa Rosa in the evening. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Santa Rosa

Get insights into the airlines that provide service to Santa Rosa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santa Rosa. Reviews last updated February 12, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines and Hawaiian Airlines from Portland to Santa Rosa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,878 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Alaska Airlines
8.0
Very good
11,878 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Hawaiian Airlines
7.8
Good
2,833 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Related info for your journey

Find useful and relevant information for your journey from Portland to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Portland to Santa Rosa flight route?

    Within the past month, 11 users have taken a look at flights from Portland to Santa Rosa Sonoma County.

  • How long is the flight from Portland to Santa Rosa?

    Airlines like Alaska Airlines fly from Portland to Santa Rosa in about 1h 40m. The time it takes to get you to your destination is usually consistent. The distance between Portland and Santa Rosa is about 489 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Portland to Santa Rosa round-trip?

    Our cheapest airline available from Portland to Santa Rosa is Alaska Airlines. Our recent data shows that you can find tickets from as low as $157 on this airline. An additional option worth looking into is Hawaiian Airlines, starting at $197. Alaska Airlines is currently priced 47% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Portland to Santa Rosa?

    The top 3 most reliable airlines when flying from Portland to Santa Rosa are SkyWest Airlines (68%), Alaska Airlines (66%) and Horizon Air (60%).

  • What are the cheapest flights from Portland to Santa Rosa?

    The cheapest flight price from Portland to Santa Rosa is $93. On average you can expect to pay $225. The most popular route, (Portland - Santa Rosa Sonoma County), can usually be booked for $157.

  • Can I find deals for flights from Portland to Santa Rosa that include hotel bookings?

    Yes. In addition to deals on Portland to Santa Rosa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Santa Rosa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Santa Rosa.

  • Can I find deals for business class flights from Portland to Santa Rosa?

    Yes. Cheapflights offers flight deals from Portland to Santa Rosa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Santa Rosa?

    Currently, July is the cheapest month in which you can book a flight from Portland to Santa Rosa (average of $66). Flying from Portland to Santa Rosa in March is currently the most expensive (average of $115). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Santa Rosa?

Book flights to Santa Rosa if you plan to visit one of these locations
Fort Bragg
Ukiah

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Top 2 airlines flying from Portland to Santa Rosa

Discover the top 2 airlines that operate flights from Portland to Santa Rosa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$157Average$300FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$197Average$329FlexibilityNo cancel feeOn-time85%

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