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$98+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Santa Rosa Sonoma County are usually found in April or September, booked 87 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 July 31, 2025.

Round-trip from

$177
(Alaska Airlines)

One-way from

$98
(Hawaiian Airlines)

Popular in

July

Cheapest in

April

Average price

$364

Good round-trip deal

$277 or less

Good one-way deal

$188 or less
From Portland to Santa Rosa Sonoma County
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One-way flight from Portland to Santa Rosa Sonoma County
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Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Portland to Santa Rosa Sonoma County.
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Price to beat on a one-way flight from Portland to Santa Rosa Sonoma County.
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Find 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 July 31, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 10/167:20 amPDX - STS
Nonstop1h 43mAlaska Airlines
Mon 10/206:51 pmSTS - PDX
Nonstop1h 42mAlaska Airlines
Deal found 7/31$177
This Hawaiian Airlines deal was found by Cheapflights users on 7/31. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/277:00 amPDX - STS
Nonstop1h 48mHawaiian Airlines
Mon 9/296:56 pmSTS - PDX
1 stop4h 43mHawaiian Airlines
Deal found 7/31$187

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 July 31, 2025.
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

Thu 10/16

7:20 am-9:03 am

Nonstop1h 43m

Santa Rosa Sonoma County

Mon 10/20

6:51 pm-8:33 pm

Nonstop1h 42m

$177

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Sat 9/27

7:00 am-8:48 am

Nonstop1h 48m

Santa Rosa Sonoma County

Mon 9/29

6:56 pm-11:39 pm

1 stop4h 43m

$187

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Thu 9/18

5:35 pm-11:59 pm

1 stop6h 24m

$98

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Tue 9/2

3:40 pm-8:23 pm

1 stop4h 43m

$118

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Sun 9/21

7:45 am-4:34 pm

2 stops8h 49m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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 July 25, 2025.

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 87 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, February is the cheapest month in which you can book a flight from Portland to Santa Rosa (average of $202). Flying from Portland to Santa Rosa in June is currently the most expensive (average of $395). 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 July 31, 2025.

It’s optimal to fly from Portland to Santa Rosa in the afternoon. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Portland to Santa Rosa

Explore weekly flight availability from Portland to Santa Rosa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from PDX to STS are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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 July 31, 2025.
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
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,610 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What airports do I use to fly from Portland to Santa Rosa?

    Santa Rosa Sonoma County is the airport most travelers will use when flying to Santa Rosa from Portland. Booking flights from Portland (PDX) to Sonoma County (STS) should be relatively easy as there are 4 daily flights to Santa Rosa from 2 different airlines. 1h 35m is how long a flight from Portland to Santa Rosa Sonoma County will take if you book a nonstop flight.

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

    Within the past month, 10 users have taken a look at flights from Portland to Santa Rosa Sonoma County.

  • 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 $177 on this airline. An additional option worth looking into is Hawaiian Airlines, starting at $187. Alaska Airlines is currently priced 41% 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 Horizon Air (94%), Alaska Airlines (85%) and Hawaiian Airlines (85%).

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

    The cheapest flight price from Portland to Santa Rosa is $108. On average you can expect to pay $270. The most popular route, (Portland - Santa Rosa Sonoma County), can usually be booked for $177.

  • 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, February is the cheapest month in which you can book a flight from Portland to Santa Rosa (average of $202). Flying from Portland to Santa Rosa in June is currently the most expensive (average of $395). 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$176Average$310FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$207Average$382FlexibilityNo cancel feeOn-time85%

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