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Cheap flights from Portland to San Francisco from $73

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portland to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
3:20 pm - 8:25 pmPDX  Portland-STS Santa Rosa Sonoma County
5h 05m1 stop San Diego
Southwest Logo
3:00 pm - 9:50 pmSTS  Santa Rosa Sonoma County-PDX Portland
6h 50m1 stop Las Vegas Harry Reid Intl
$145Southwest
Sat, Dec 5 - Wed, Dec 9
Southwest Logo
11:50 am - 8:25 pmPDX  Portland-STS Santa Rosa Sonoma County
8h 35m2 stops San Jose San Diego
Southwest Logo
3:00 pm - 9:50 pmSTS  Santa Rosa Sonoma County-PDX Portland
6h 50m1 stop Las Vegas Harry Reid Intl
$151Southwest
Sat, Dec 5 - Wed, Dec 9
Southwest Logo
11:50 am - 8:25 pmPDX  Portland-STS Santa Rosa Sonoma County
8h 35m2 stops San Jose San Diego
Southwest Logo
6:45 am - 3:35 pmSTS  Santa Rosa Sonoma County-PDX Portland
8h 50m2 stops San Diego Oakland
$156Southwest
Sat, Dec 5 - Wed, Dec 9
Southwest Logo
6:55 am - 12:15 pmPDX  Portland-STS Santa Rosa Sonoma County
5h 20m1 stop Las Vegas Harry Reid Intl
Southwest Logo
6:45 am - 12:15 pmSTS  Santa Rosa Sonoma County-PDX Portland
5h 30m1 stop San Diego
$177Southwest
Wed, Dec 9 - Wed, Dec 16
Southwest Logo
3:35 pm - 9:30 pmPDX  Portland-STS Santa Rosa Sonoma County
5h 55m1 stop San Diego
Southwest Logo
5:10 pm - 12:10 amSTS  Santa Rosa Sonoma County-PDX Portland
7h 00m2 stops San Diego Sacramento Intl
$178Southwest
Wed, Nov 18 - Sat, Nov 21
Southwest Logo
3:20 pm - 8:25 pmPDX  Portland-STS Santa Rosa Sonoma County
5h 05m1 stop San Diego
Southwest Logo
6:05 am - 1:05 pmSTS  Santa Rosa Sonoma County-PDX Portland
7h 00m1 stop San Diego
$181Southwest
Sat, Dec 5 - Sun, Dec 6
Southwest Logo
6:55 am - 12:15 pmPDX  Portland-STS Santa Rosa Sonoma County
5h 20m1 stop Las Vegas Harry Reid Intl
Southwest Logo
6:45 am - 3:35 pmSTS  Santa Rosa Sonoma County-PDX Portland
8h 50m2 stops San Diego Oakland
$182Southwest
Wed, Dec 9 - Wed, Dec 16
Southwest Logo
11:25 am - 9:30 pmPDX  Portland-STS Santa Rosa Sonoma County
10h 05m2 stops Las Vegas Harry Reid Intl San Diego
Southwest Logo
5:10 pm - 12:10 amSTS  Santa Rosa Sonoma County-PDX Portland
7h 00m2 stops San Diego Sacramento Intl
$183Southwest
Wed, Nov 18 - Sat, Nov 21
Alaska Airlines Logo
7:33 am - 9:20 amPDX  Portland-STS Santa Rosa Sonoma County
1h 47mnonstop
Alaska Airlines Logo
8:10 am - 9:50 amSTS  Santa Rosa Sonoma County-PDX Portland
1h 40mnonstop
$277Alaska Airlines
Wed, Jan 6 - Wed, Jan 20
Alaska Airlines Logo
7:07 am - 8:57 amPDX  Portland-STS Santa Rosa Sonoma County
1h 50mnonstop
Alaska Airlines Logo
8:00 am - 9:46 amSTS  Santa Rosa Sonoma County-PDX Portland
1h 46mnonstop
$277Alaska Airlines
Sat, Dec 5 - Wed, Dec 9

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Alaska Airlines flights from Portland to Santa Rosa

Our best Alaska Airlines deals on Portland to Santa Rosa flight tickets
Alaska Airlines
Dec 9
PDX7:07 amPortland
1h 50m
STS8:57 amSanta Rosa Sonoma County
Dec 16
STS8:00 amSanta Rosa Sonoma County
1h 46m
PDX9:46 amPortland
$277
Alaska Airlines
Dec 9
PDX7:07 amPortland
1h 50m
STS8:57 amSanta Rosa Sonoma County
Dec 16
STS11:23 amSanta Rosa Sonoma County
5h 27m
1 stop
PDX4:50 pmPortland
$287
Alaska Airlines
Jan 15
PDX5:32 pmPortland
1h 43m
STS7:15 pmSanta Rosa Sonoma County
Jan 17
STS6:12 pmSanta Rosa Sonoma County
1h 46m
PDX7:58 pmPortland
$297

Southwest flights from Portland to Santa Rosa

Our best Southwest deals on Portland to Santa Rosa flight tickets
Southwest
Dec 5
PDX3:20 pmPortland
5h 05m
1 stop
STS8:25 pmSanta Rosa Sonoma County
Dec 9
STS3:00 pmSanta Rosa Sonoma County
6h 50m
1 stop
PDX9:50 pmPortland
$145
Southwest
Dec 5
PDX11:50 amPortland
8h 35m
2 stops
STS8:25 pmSanta Rosa Sonoma County
Dec 9
STS3:00 pmSanta Rosa Sonoma County
6h 50m
1 stop
PDX9:50 pmPortland
$151
Southwest
Dec 5
PDX11:50 amPortland
8h 35m
2 stops
STS8:25 pmSanta Rosa Sonoma County
Dec 9
STS6:45 amSanta Rosa Sonoma County
8h 50m
2 stops
PDX3:35 pmPortland
$156

momondo Fare Finder

 
Use the filters below to find and compare flights from Portland to Santa Rosa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Sat 12/5

3:20 pm-8:25 pm

1 stop5h 05m

Santa Rosa Sonoma County

Wed 12/9

3:00 pm-9:50 pm

1 stop6h 50m

$145

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Sat 12/5

11:50 am-8:25 pm

2 stops8h 35m

Santa Rosa Sonoma County

Wed 12/9

3:00 pm-9:50 pm

1 stop6h 50m

$151

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Sat 12/5

11:50 am-8:25 pm

2 stops8h 35m

Santa Rosa Sonoma County

Wed 12/9

6:45 am-3:35 pm

2 stops8h 50m

$156

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Wed 12/9

6:55 am-12:15 pm

1 stop5h 20m

Santa Rosa Sonoma County

Wed 12/16

6:45 am-12:15 pm

1 stop5h 30m

$177

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Wed 11/18

3:35 pm-9:30 pm

1 stop5h 55m

Santa Rosa Sonoma County

Sat 11/21

5:10 pm-12:10 am

2 stops7h 00m

$178

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Sat 12/5

3:20 pm-8:25 pm

1 stop5h 05m

Santa Rosa Sonoma County

Sun 12/6

6:05 am-1:05 pm

1 stop7h 00m

$181

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Wed 12/9

6:55 am-12:15 pm

1 stop5h 20m

Santa Rosa Sonoma County

Wed 12/16

6:45 am-3:35 pm

2 stops8h 50m

$182

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Wed 11/18

11:25 am-9:30 pm

2 stops10h 05m

Santa Rosa Sonoma County

Sat 11/21

5:10 pm-12:10 am

2 stops7h 00m

$183
Quickest round-trip

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Wed 1/6

7:33 am-9:20 am

Nonstop1h 47m

Santa Rosa Sonoma County

Wed 1/20

8:10 am-9:50 am

Nonstop1h 40m

$277

PortlandSanta Rosa

PDX Portland - STS Santa Rosa Sonoma County

PDXSTS

Portland

Sat 12/5

7:07 am-8:57 am

Nonstop1h 50m

Santa Rosa Sonoma County

Wed 12/9

8:00 am-9:46 am

Nonstop1h 46m

$277

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Portland to Santa Rosa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Santa Rosa?

Prices are currently low for flights on this route.

Typical prices usually range from $247 to $512.
The lowest price recently found on this route was $145.

What is the cheapest month to fly to Santa Rosa?

If you are unable to visit Santa Rosa during the month of April, then departing from Portland during the month January is also very affordable. Most momondo users find prices during this month for around $217.

What is the cheapest day to depart on your flight to Santa Rosa?

Our data shows that Tuesday is the least expensive day to fly to Santa Rosa. Tickets to fly out on this day can be as low as $267. On the other hand, Monday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $547.

What is the cheapest time of day to depart on your flight to Santa Rosa?

Our data shows that the cheapest Portland to Santa Rosa flights are usually those with departure times in the evening. Our users have found flights to Santa Rosa in the evening for as low as $307. Flights at noon are often more expensive with an average ticket price of $417.

What is the cheapest Portland to Santa Rosa Sonoma County flight route?

Fly from Portland to Santa Rosa Sonoma County for the best Portland - Santa Rosa Sonoma County flight prices

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

You are more likely to see cheaper flights to Santa Rosa from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Santa Rosa for around $326 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santa Rosa from Portland for as low as $207 on momondo.

What cabin class options are available on Portland to Santa Rosa flights?

There are 4 cabin classes available to choose from on Portland to Santa Rosa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to Santa Rosa flights?

No. A direct flight is the cheapest option for a flight between Portland to Santa Rosa.

How have Portland to Santa Rosa flight prices changed over time?

As of October 2026, prices for Portland to Santa Rosa flights are approximately 61% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Santa Rosa

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Santa Rosa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Santa Rosa (PDX to STS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Santa Rosa

Best Price Found

$73

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Santa Rosa

1 airport
The best one-way flight to Santa Rosa from Portland in the past 72 hours is $73. The best round-trip flight deal from Portland to Santa Rosa found on momondo in the last 72 hours is $145.
The fastest flight from Portland to Santa Rosa takes 1h 35m
Direct flights go from Portland to Santa Rosa every day.
There is 1 airport in Santa Rosa. From Portland there are direct flights to Santa Rosa Sonoma County (STS).
Search flight deals

Frequently asked questions about flying from Portland to Santa Rosa

  • How far is Portland to Santa Rosa Sonoma County by plane?

    The straight-line distance from Portland to Santa Rosa Sonoma County is 489.0 mi. By plane, this route typically takes 1h 35m.

  • When did momondo last update prices for flights from Portland Airport to Santa Rosa Sonoma County Airport?

    Prices for flights from Portland Airport to Santa Rosa Sonoma County Airport are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Santa Rosa Sonoma County Airport?

  • How old do you have to be to fly from Portland Airport to Santa Rosa Sonoma County Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Santa Rosa Sonoma County Airport.

  • What documentation or ID do you need to fly to Santa Rosa Sonoma County Airport?

    The travel and health documents required for your trip to Santa Rosa Sonoma County Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Santa Rosa Sonoma County Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Portland to Santa Rosa?

  • What is the most popular airline from Portland to Santa Rosa?

Best airlines flying from Portland to Santa Rosa

Compare and see reviews for airlines that fly from Portland to Santa Rosa with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $157Free CancellationRating
7.9
13,107 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Portland to Santa Rosa

    Across 5 Alaska Airlines flights from Portland to Santa Rosa this week, the average price was $334, with the best Alaska Airlines deals starting from $157 round-trip. 13,107 users have rated Alaska Airlines on momondo, with an average score of 7.9/10.

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Why use momondo?

Why should I use momondo to find a flight deal from Portland to Santa Rosa?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Santa Rosa for you.

Can I find flights from Portland to Santa Rosa with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Santa Rosa from Portland with this policy.

How can momondo help me find flights from Portland to Santa Rosa?

Once you have performed a search for Portland to Santa Rosa flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to Santa Rosa right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Santa Rosa flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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