Cheap Flights from Santa Rosa to Portland

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Find the cheapest month to fly from Santa Rosa to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Santa Rosa to Portland flights are currently cheapest in August.

Direct flights from Santa Rosa to Portland

Santa Rosa to Portland: Alternative routes

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

Santa Rosa to Portland: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 5,043
Cheapest month to flyAugust
Average flight time1 hr, 38 mins
Most popular airlineAlaska Airlines
Average flights per week35

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

The best price we found for a return flight from Santa Rosa to Portland is ج.م.‏ 9,706. 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 38 minutes is the average flight time from Santa Rosa to Portland.
Alaska Airlines, Hawaiian Airlines and SkyWest Airlines fly direct from Santa Rosa to Portland.
As of May 2025, there are 35 flights per week flying from Santa Rosa to Portland.
The cheapest month to fly from Santa Rosa to Portland is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Santa Rosa Airport to Portland Airport on Thursday, 2 October 2025.
Yes – the average flight time is 1 hour and 38 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 Portland 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 Portland is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Alaska Airlines offers the cheapest flight tickets to Portland.

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

  • Book a direct flight from Sonoma County Airport to Portland International Airport and you'll be travelling for an average of 1 hour 35 minutes.

  • Portland's timezone is UTC-7, which is the same as Santa Rosa.

  • Flights from STS to PDX start at 10:01 — the first with Alaska Airlines. The last departure is at 19:59 with Alaska Airlines. In total, you can choose from 12 weekly Sonoma County Airport to Portland International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Make sure you're at the airport on time to board your STS to PDX flight.

  • You'll likely experience longer queues during popular months like October. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • Alaska Airlines offers direct flights from Sonoma County Airport to Portland International Airport. Book with this popular carrier, then get ready to tick off the sights in Portland — and maybe even more of United States if your schedule allows.

  • Alaska Airlines is the airline most travellers choose for this route.

  • Alaska Airlines is the most punctual carrier that operates STS to PDX flights. An impressive 83.49% of its services on this route arrive without delay.

  • Explore another city along the way or simply break up your flight with a stopover. Just uncheck 'Direct flights only' to see your options when searching for tickets from Sonoma County Airport to Portland International Airport. Many travellers pass through Phoenix Sky Harbour International Airport when flying between STS and PDX.

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

  • Currently, ج.م.‏ 5,043 is the cheapest price we've seen for a one-way Sonoma County Airport to Portland International Airport flight. The best price for a return ticket is ج.م.‏ 9,706. Bear in mind that fares can change due to demand when booking.

  • Book seven months before travelling. After crunching the numbers on our calendar, this is how far you should book ahead to find cheap tickets from STS to PDX.

  • The cheapest month for flights from Sonoma County Airport to Portland International Airport is June. Use the 'Whole month' tool to find the lowest airfares if you have flexible dates.

  • You won't have to check every day to see if fares have gone down when you set up a Price Alert. We'll let you know as soon as the price changes on cheap flights from STS to PDX.

  • Tailor your trip using filters. Pick your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Sonoma County Airport to Portland International Airport.

Handy information about Sonoma County Airport (STS)

  • STS is located at 2200 Airport Boulevard.

  • When it comes to the on-time performance of Sonoma County Airport, 73.45% of flights meet their scheduled arrival time.

  • Central Santa Rosa to Sonoma County Airport is around 13 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Catching public transport? Expect a journey time of around 35 minutes.

  • Catching an early flight from Sonoma County Airport to Portland International Airport? Avoid rushing to the terminal (and enjoy a little extra shut-eye) by picking one of these stays near STS:

Arriving at Portland International Airport (PDX)

Getting from Portland International Airport (PDX) to central Portland

  • PDX is located at 7000 NE Airport Way.

  • Portland International Airport is approximately 19 kilometres from central Portland. The drive time takes about 20 minutes.

  • It takes around 45 minutes if you're travelling by public transport.

When to fly to Portland International Airport (PDX)

  • The quietest month for a flight from Sonoma County Airport to Portland International Airport is May, while July is the most popular. Pick the best time to visit Portland based on whether you prefer a faster pace or a more relaxed vibe.

  • The warmest month in Portland is August, with temperatures ranging between 12ºC and 31ºC. Book your flights from Sonoma County Airport to Portland International Airport in this month if you like this kind of weather.

  • December has average temperatures of between 0ºC and 9ºC. Search for cheap tickets from STS to PDX sometime then if you want to travel when it's cooler.

Explore more of United States

  • Portland has plenty going for it, but there are so many other corners of United States just waiting to be explored. Around 241 kilometres north of Portland, a visit to Seattle will keep your itinerary packed. Don't miss top attractions like Greyhound: Bus Station, LMN Architects and Boeing Radiation Effects Lab.

  • Spokane is another sought-after destination in United States and is around 467 kilometres north-east of Portland. No journey is complete without dropping by Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

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