Cheap Flights from Portland to Santa Rosa from $139

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      Compare Portland to Santa Rosa flight deals

      Find the cheapest month or even day of the year to fly to Santa Rosa

      Book the best Santa Rosa fare with no extra fees

      Flight deals from Portland to Santa Rosa

      Looking for a cheap last-minute deal or the best return flight from Portland to Santa Rosa? Find the lowest prices on one-way and return tickets right here.

      Direct flights from Portland to Santa Rosa

      Portland to Santa Rosa: Alternative routes

      Compare routes from Portland to Santa Rosa below. You may find an airport to fly into that's cheaper, faster, or easier than Santa Rosa.

      Portland to Santa Rosa: Flight information

      The things to know before you go.
      Cheapest flight found$308
      Cheapest month to flyJune
      Average flight time1 hr, 40 mins
      Most popular airlineAlaska Airlines
      Average flights per week44

      Finding cheap flights from Portland to Santa Rosa: Frequently asked questions

      The best price we found for a return flight from Portland to Santa Rosa is $308. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      1 hour and 40 minutes is the average flight time from Portland to Santa Rosa.
      Alaska Airlines, SkyWest Airlines and Hawaiian Airlines fly direct from Portland to Santa Rosa.
      As of April 2025, there are 44 flights per week flying from Portland to Santa Rosa.
      The cheapest month to fly from Portland to Santa Rosa is usually April 2025.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Santa Rosa Airport on Thursday, 5 June 2025.
      Yes – the average flight time is 1 hour and 40 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Santa Rosa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Santa Rosa is around 40 days in advance, so don’t leave your flight to the last minute.
      Currently, Hawaiian Airlines offers the cheapest flight tickets to Santa Rosa.

      Travelling from Portland International Airport (PDX) to Sonoma County Airport (STS): what you need to know

      • Around 1 hour 35 minutes is how long you can expect to be travelling on a direct flight from Portland International Airport to Sonoma County Airport.

      • Choose from 12 weekly Portland International Airport to Sonoma County Airport flights. The 07:45 departure with Alaska Airlines is the earliest you can take. Alaska Airlines operates the latest service of the day at 16:42.

      • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably board your PDX to STS flight.

      • During popular months such as July, it's a good idea to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you travel during peak periods in general.

      • Flying into Santa Rosa (and then seeing more of United States!) is a breeze with Alaska Airlines. This popular airline offers direct flights from Portland International Airport to Sonoma County Airport.

      • Most passengers choose to fly with Alaska Airlines on this route.

      • Alaska Airlines is the most punctual carrier that operates PDX to STS flights. A reliable 81.48% of its services on this route land on time.

      • Opt for a stopover if you'd like to break up your flight. Simply uncheck 'Direct flights only' to look at all your options for tickets from Portland International Airport to Sonoma County Airport. Phoenix Sky Harbour International Airport is a popular stopover on the PDX to STS route.

      How to find the cheapest flights from Portland International Airport (PDX) to Sonoma County Airport (STS)

      • $139 is currently the lowest price for a one-way Portland International Airport to Sonoma County Airport flight. A return flight starts from $308. These fares can change based on availability and demand.

      • Book eight months before you want to fly. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap tickets from PDX to STS.

      • Organise your trip for July. That's the cheapest month for flights from Portland International Airport to Sonoma County Airport. If you're flexible with your travel dates, try out the 'Whole month' tool to see the cheapest price across each month.

      • You don't need to check every day to see if fares have dropped when you set up a Price Alert. We'll let you know the moment there's a new deal on cheap flights from PDX to STS.

      • Select your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Portland International Airport to Sonoma County Airport.

      Handy information about Portland International Airport (PDX)

      • You'll find PDX at 7000 NE Airport Way.

      • Portland International Airport maintains a solid on-time performance, so flight disruptions are less likely. Departures from PDX make it to their destination as scheduled 83.65% of the time.

      • Portland International Airport is about 19 kilometres from central Portland. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 20 minutes or so to arrive, depending on the traffic.

      • Expect a trip time of roughly 45 minutes on public transport.

      • Have an early flight from Portland International Airport to Sonoma County Airport? Avoid the last-minute rush to the airport (and enjoy a little extra shut-eye) by choosing one of these stays close to PDX:

      Arriving at Sonoma County Airport (STS)

      • If you're getting in on a late Portland International Airport to Sonoma County Airport flight, few things beat the convenience of staying near the terminal. Collect your bags from the carousel and then be tucked up in bed shortly after at one of these options near STS:

      • Follow your own route with a Sonoma County Airport rental car. Book your wheels from Ace Rent a Car, Hertz or Avis and see more of Santa Rosa and beyond.

      • Book your ride from Sonoma County Airport at least a few weeks in advance to lock in the best possible deal. If you're planning to travel during peak season, it's smart to book even earlier.

      Getting from Sonoma County Airport (STS) to central Santa Rosa

      • The street address for STS is 2200 Airport Boulevard.

      • Sonoma County Airport is roughly 13 kilometres from the centre of Santa Rosa. Driving there takes about 15 minutes.

      • Getting to the centre on public transport typically takes 35 minutes.

      When to fly to Sonoma County Airport (STS)

      • It's time to work out your trip dates for your flight from Portland International Airport to Sonoma County Airport. October is the busiest month to visit Santa Rosa. If you prefer a more laid-back vibe, go in May.

      • The warmest month in Santa Rosa is August, with temperatures ranging between 11ºC (52ºF) and 29ºC (84ºF). Lock in your flights from Portland International Airport to Sonoma County Airport in this month if you like this kind of weather.

      • Search for cheap tickets from PDX to STS in February if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 2ºC (36ºF) and 19ºC (66ºF) on average.

      Explore more of United States

      • San Jose is just one of the many cities in United States waiting to be explored after you've seen Santa Rosa. Around 145 kilometres away to the south-east, check out popular attractions including Winchester Mystery House, Rosicrucian Egyptian Museum and San Jose Museum of Art.

      • If you're interested in discovering another major stop in United States, consider San Francisco, about 80 kilometres south of Santa Rosa. Golden Gate Bridge, Alcatraz Island and Lombard Street are key highlights.

      Prices shown on this page are estimated lowest prices only. Found in the last 45 days.