PDX - STS

$89 Find Cheap Flights from Portland to Santa Rosa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Santa Rosa departing on 3/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Santa Rosa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Santa Rosa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Santa Rosa, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$157
Overall average: $372
Alaska Airlines
Wed 3/11Wed 3/18
PDX - STS • Non-stop
Cheapest one-way
$89
Typical prices: $98-$131
Alaska Airlines
Wed 3/25
PDX - STS • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $157 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 27% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Santa Rosa!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Santa Rosa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Santa Rosa

Wed, Mar 11 - Wed, Mar 18
Alaska Airlines Logo
3:00 pm - 4:47 pm
PDX
-
STS
1h 47mnonstop
Alaska Airlines Logo
7:30 am - 9:10 am
STS
-
PDX
1h 40mnonstop
$157Alaska Airlines
Thu, May 14 - Wed, May 20
Alaska Airlines Logo
2:48 pm - 9:22 pm
PDX
-
STS
6h 34m
1 stop
Alaska Airlines Logo
8:20 am - 1:43 pm
STS
-
PDX
5h 23m
1 stop
$177Alaska Airlines
Wed, Mar 11 - Wed, Mar 18
Alaska Airlines Logo
3:52 pm - 9:52 pm
PDX
-
STS
6h 00m
1 stop
Alaska Airlines Logo
7:02 pm - 8:45 pm
STS
-
PDX
1h 43mnonstop
$187Alaska Airlines
Tue, Mar 17 - Thu, Mar 19
Alaska Airlines Logo
7:15 am - 9:14 am
PDX
-
STS
1h 59mnonstop
Alaska Airlines Logo
7:02 pm - 8:45 pm
STS
-
PDX
1h 43mnonstop
$197Alaska Airlines
Thu, May 14 - Wed, May 20
Alaska Airlines Logo
7:00 am - 8:49 am
PDX
-
STS
1h 49mnonstop
Alaska Airlines Logo
8:20 am - 4:49 pm
STS
-
PDX
8h 29m
1 stop
$201Alaska Airlines
Wed, Mar 11 - Wed, Mar 18
Alaska Airlines Logo
3:52 pm - 9:52 pm
PDX
-
STS
6h 00m
1 stop
Alaska Airlines Logo
7:00 am - 1:37 pm
STS
-
PDX
6h 37m
1 stop
$207Alaska Airlines
Wed, Apr 8 - Mon, Apr 13
Alaska Airlines Logo
9:35 pm - 11:15 pm
PDX
-
STS
1h 40mnonstop
Alaska Airlines Logo
2:12 pm - 9:28 am
STS
-
PDX
19h 16m
1 stop
$210Alaska Airlines
Thu, Apr 2 - Sun, Apr 5
Alaska Airlines Logo
7:00 am - 2:36 pm
PDX
-
STS
7h 36m
1 stop
Alaska Airlines Logo
7:02 pm - 8:45 pm
STS
-
PDX
1h 43mnonstop
$217Alaska Airlines
Wed, Apr 8 - Mon, Apr 13
Southwest Logo
11:45 am - 10:10 pm
PDX
-
STS
10h 25m
1 stop
Southwest Logo
4:40 pm - 12:55 am
STS
-
PDX
8h 15m
2 stops
$218Southwest
Wed, Mar 18 - Fri, Mar 20
Alaska Airlines Logo
7:15 am - 9:03 am
PDX
-
STS
1h 48mnonstop
Alaska Airlines Logo
2:56 pm - 4:39 pm
STS
-
PDX
1h 43mnonstop
$227Alaska Airlines
Booking Insights

KAYAK's insights & trends for Portland to Santa Rosa flights

Get data-powered insights and trends into flights from Portland to Santa Rosa to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to Santa Rosa?

The average price of all round-trip flights from Portland to Santa Rosa clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Santa Rosa on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Portland to Santa Rosa. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Portland to Santa Rosa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Santa Rosa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Santa Rosa is January, where tickets cost $217 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $372 and $347 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Santa Rosa, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Santa Rosa, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$89
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Portland to Santa Rosa

When to book flights from Portland to Santa Rosa

Are your dates flexible? Find out the best times to travel from Portland to Santa Rosa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Santa Rosa

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

    In the last 3 days, the lowest price for a flight from Portland to Santa Rosa was $89 for a one-way ticket and $157 for a round-trip.

  • Do I need a passport to fly between Portland and Santa Rosa?

    No

  • Which airports will I be using when flying from Portland to Santa Rosa?

    Portland and Santa Rosa are both served by 1 main airport. You will leave Portland from Portland and will be arriving at Santa Rosa Sonoma County.

  • Which airlines offer Wi-Fi service onboard planes from Portland to Santa Rosa?

    Alaska Airlines, Hawaiian Airlines, American Airlines, and Delta offer inflight Wi-Fi service on the Portland to Santa Rosa flight route.

  • Which aircraft models fly most regularly from Portland to Santa Rosa?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Portland to Santa Rosa flight route.

  • Which airline alliances offer flights from Portland to Santa Rosa?

    oneworld is the only airline alliance operating flights between Portland and Santa Rosa.

  • On which days can I fly direct from Portland to Santa Rosa?

    There are nonstop flights from Portland to Santa Rosa on a daily basis.

  • Which is the best airline for flights from Portland to Santa Rosa, Alaska Airlines or Hawaiian Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to Santa Rosa are Alaska Airlines and Hawaiian Airlines. With an average price for the route of $300 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Hawaiian Airlines is also a great choice for the route, with an average price of $329 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Portland to Santa Rosa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Santa Rosa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Santa Rosa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santa Rosa from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Santa Rosa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santa Rosa with an airline and back to Portland with another airline. Booking your flights between Portland and STS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Santa Rosa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santa Rosa from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Portland to Santa Rosa

  • Looking for a cheap flight? 25% of our users found flights on this route for $138 or less one-way and $237 or less round-trip.

Prefer to fly direct from Portland to Santa Rosa?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Portland to Santa Rosa Sonoma County.
Find which airlines fly direct from Portland Airport to Santa Rosa Sonoma County Airport, which days they fly and book direct flights.

Direct departures

Portland to Santa Rosa Sonoma County

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Santa Rosa Sonoma County to Portland

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Reviews of the top airlines flying from Portland to Santa Rosa

 
See real verified KAYAK customer reviews for airlines flying from Portland to Santa Rosa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Santa Rosa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11874 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
7.1Food
Airline reviews

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

6.0 GoodJack, Feb 2026
PDX - SFO
Read more Alaska Airlines reviews

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

Great. I did have a little issue getting into the Lounge, which is likely more an American Airlines issue. I did not carry my physical AAdvantage Executive credit card with me on this trip, which Admirals Club membership is a part of the benefits of having this card. The instructions on the AA website and the Citi cards website make it seem like you don't need the physical card, as both sites state you can enter with your boarding pass and driver's license. But both lounges said you were required to present the physical card (and not the digital version, via Apple Pay), as only the physical card says "Admirals Club" on the back.I also do not have a physical Admirals Club membership card, so while both lounges eventually let me in, both denied me entrance initially for this reason.

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

The crew was very friendly. Boarding was quick and efficient.

we waited for 50 minutes to check a bag and missed a flight. do better.

The flight crew was very professional and pleasant. Our flight was delayed 3 hours, but Kayak informed me in advance

Before I even boarded this old white man , a fat Samoan lady, and a short brown guy were at the desk. They asked if we could have 15 volunteers to get free checked bags cause it was a full flight. I waited in line, I got up to the short brown guy and he asked for my boarding pass and I showed him, he said that he can’t check my bag because I wasn’t given a seat yet. So he had me go to the next line with the old white guy, but before I switched lines I asked him, well if I go to that line, will I be able to check my bag so I waited in line and he said yeah, it doesn’t matter , I’m good. So I switch lines and wait in the line of the old white man, with every guest before me he was very sweet , making small talk, smiling and had great eye contact( all of the people he was talking to was white) I come up and he doesn’t look at me , then says I’ll be right with you, I wait for him to initiate and when he does he’s like what’s up? I was like the man next to you told me I needed to get checked in before I can check my bag. He’s like what’s your last name and I say Valenzuela , and he said we’re not there yet, all while not smiling, no eye contact like he was with the other guests. He said we’re will call you when I get to you. So I go sit down and I’m sitting down for less than a minute and he calls me and someone else. I go up and say Valenzuela and he’s like who are you and I’m like Valenzuela , he’s like hmm and says don’t go anywhere and calls someone else. I finally get my seat and I go back to the short brown man and ask if I can check my bag and he said there isn’t any room available and I was like? Wait you told me and then the fat Samoan lady said yeah we don’t need anymore bags thank you. I was dumbfounded and just walked away. So rude. Terrible experience and terrible communication on their end.

The flight was delayed, but once it arrived everything moved right along.

Great airline. Sat next to a really big person tho

I like that if they asked you to checked in a bag at the gate they give you priority to board

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

I like Hawaiian, it was great that they had good internet connection across the Pacific Ocean, thanks to Star Link satellites. The seating was comfortable, ( I was in economy ). Maybe I missed it, but I only got offered a beverage once. It was a nonstop flight KOA to SMF. I would take it again next time I go that way.

Previously flown Hawaiian Airlines on similar routes, I found Alaska Airlines to be noticeably more comfortable. The seats on Alaska Airlines provided better support and cushioning, which made a significant difference on the long flight to the islands. When you’re spending 5-6 hours in the air, seat comfort really matters, and Alaska Airlines delivered where it counts. After comparing both carriers, I’ve decided to book with Alaska Airlines for all my future Hawaii trips. The superior seat comfort alone makes it worth choosing Alaska over Hawaiian Airlines. If you’re planning a trip to Hawaii and prioritizing comfort, I’d recommend giving Alaska Airlines a try. You won’t be disappointed. Highly recommended for Hawaii travel!

I received several emails about my 3:10 flight. When I showed up to the airport at 12:30 to check my bags I was told the flight was actually at 1 pm. They grudgingly rebooked me for a flight at 5:22 to Vegas to get a connecting to LAX. I did find the gate for my original 3:10 flight but they were booked. I proceeded to receive status updates and gate change information for the 3:10 flight, even though I was apparently never supposed to be on that flight

The crew was EXTREMELY helpful And sweet and the flight was smooth!

The Kayak confirmation number did not work for checking in the day before. I checked in at 8.30 using my ticket number. When I arrived at the airport, I was informed that the flight was overbooked, and since I had checked in late, I did not have a seat. The Next flight was not until ten PM. I called my wife, who had been taking care of our kids all weekend, and she was upset, calling me a liar and telling me to stay in SD. It turned my weekend getaway into a nightmare! I blame the Kayak website and will not book flights using your app in the future.

One hour waiting time after boarding, but arrived in time. I am satisfied

Flying with Hawaiian Airlines is a treat! They have the best crew, food and drinks! I’ve always enjoyed flying with Hawaiian Airlines and will continue to use them!

Amazing all female crew, including the pilot. Great flight attendants and smooth trip. Food was good. Boarding the plane from back to front would have made things significantly smoother. Took forever to wait for people to clear the alley. A little extra leg room would be nice also. Please thank your flight crew!

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

Information on your arrival and departure airports