$79+ Cheap flights from Portland to Santa Rosa (PDX - STS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STS
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Santa Rosa with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Portland to Santa Rosa Sonoma County are usually found in January or April, booked 87 days in advance, depart on a Tuesday or Friday and return on a Saturday
Cheap flight deals from Portland to Santa Rosa
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to Santa RosaExplore 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 September 12, 2026.
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 September 12, 2026.
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/32:10 pm -
1 stop5h 45m
Tue 10/66:35 am -
1 stop6h 25m
Deal found 9/10![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 9/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:10 pm -
1 stop5h 50m
Mon 10/264:50 pm -
2 stops6h 40m
Deal found 9/7![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:20 am -
2 stops8h 40m
Tue 10/136:35 am -
2 stops8h 30m
Deal found 9/8![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:10 pm -
1 stop7h 10m
Mon 10/264:50 pm -
2 stops6h 40m
Deal found 9/12![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:20 am -
2 stops8h 40m
Tue 10/206:35 am -
2 stops8h 20m
Deal found 9/8![Southwest logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/177:09 am -
1 stop12h 41m
Tue 10/204:35 pm -
1 stop21h 15m
Deal found 9/10![Alaska Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/53:20 pm -
1 stop5h 05m
Mon 12/76:45 am -
1 stop5h 30m
Deal found 9/11![Southwest logo]()
$250
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:20 pm -
2 stops9h 25m
Wed 10/146:35 am -
1 stop6h 25m
Deal found 9/8![Southwest logo]()
$255
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:30 pm -
1 stop6h 15m
Wed 10/211:30 pm -
1 stop8h 50m
Deal found 9/12![Southwest logo]()
$262
Best flights from Portland to Santa RosaDiscover carefully curated flight deals from Portland to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Portland to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:50 am -
1 stop6h 10m
Tue 10/206:35 am -
2 stops8h 20m
Deal found 9/8![Southwest logo]()
$162
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/37:09 am -
1 stop12h 41m
Tue 10/66:19 am -
1 stop7h 31m
Deal found 9/10![Alaska Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:20 pm -
2 stops9h 25m
Wed 10/146:35 am -
2 stops8h 30m
Deal found 9/8![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/177:09 am -
1 stop12h 41m
Tue 10/204:35 pm -
1 stop21h 15m
Deal found 9/10![Alaska Airlines logo]()
$243
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 12/67:37 am -
Nonstop1h 35m
Mon 12/143:18 pm -
1 stop25h 32m
Deal found 9/10![Alaska Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:35 pm -
1 stop5h 55m
Thu 11/123:10 pm -
1 stop6h 40m
Deal found 9/11![Southwest logo]()
$283
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 11/197:18 am -
1 stop8h 11m
Thu 11/267:39 am -
1 stop5h 22m
Deal found 9/7![Alaska Airlines logo]()
$280
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:35 pm -
1 stop7h 10m
Tue 11/173:00 pm -
1 stop6h 50m
Deal found 9/12![Southwest logo]()
$283
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/177:00 am -
Nonstop1h 57m
Sun 10/186:37 pm -
Nonstop1h 43m
Deal found 9/7![Alaska Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/165:53 pm -
Nonstop1h 54m
Mon 10/194:35 pm -
1 stop6h 12m
Deal found 9/7![Alaska Airlines logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/171:49 pm -
1 stop6h 01m
Mon 10/197:00 am -
1 stop6h 35m
Deal found 9/7![Alaska Airlines logo]()
$307
Last-minute flights from Portland to Santa RosaDiscover last-minute flight deals from Portland to Santa Rosa. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Santa Rosa. Data last updated September 12, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/32:10 pm -
1 stop5h 45m
Tue 10/66:35 am -
1 stop6h 25m
Deal found 9/10![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:20 pm -
2 stops9h 25m
Wed 10/146:35 am -
1 stop6h 25m
Deal found 9/8![Southwest logo]()
$255
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:20 am -
2 stops8h 40m
Tue 10/136:35 am -
2 stops8h 30m
Deal found 9/8![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:30 pm -
1 stop6h 15m
Wed 10/211:30 pm -
1 stop8h 50m
Deal found 9/12![Southwest logo]()
$262
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:20 am -
2 stops8h 40m
Tue 10/206:35 am -
2 stops8h 20m
Deal found 9/8![Southwest logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/177:09 am -
1 stop12h 41m
Tue 10/204:35 pm -
1 stop21h 15m
Deal found 9/10![Alaska Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:10 pm -
1 stop7h 10m
Mon 10/264:50 pm -
2 stops6h 40m
Deal found 9/12![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 9/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:10 pm -
1 stop5h 50m
Mon 10/264:50 pm -
2 stops6h 40m
Deal found 9/7![Southwest logo]()
$222
One-way flights from Portland to Santa RosaSearch for one-way flight options from Portland to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Portland to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:35 pm -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Southwest logo]()
$79
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:10 pm -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Southwest logo]()
$89
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/69:03 am -
1 stop5h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Alaska Airlines logo]()
$122
This Booking.com deal was found by Cheapflights users on 9/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:25 am -
1 stop27h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Alaska Airlines logo]()
$127
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:20 am -
2 stops8h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Southwest logo]()
$144
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:33 am -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$149
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:33 am -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$159
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/89:16 am -
2 stops6h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$164
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:33 am -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$169
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 11/911:54 am -
2 stops10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Alaska Airlines logo]()
$170
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:30 pm -
1 stop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Southwest logo]()
$172
Find 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 September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $157 (Southwest) |
One-way from | $79 (Southwest) |
Popular in | August |
Cheapest in | January |
Average price | $307 |
Good round-trip deal | $280 or less |
Good one-way deal | $313 or less |
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 7,457,451 searches. Data last updated September 12, 2026.
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
Cheapest round-trip
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Sat 12/5
11:40 am-8:25 pm
2 stops8h 45m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$84
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Tue 11/10
1:15 pm-9:30 pm
2 stops8h 15m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$84
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Fri 10/23
4:10 pm-11:20 pm
1 stop7h 10m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$89
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Tue 10/20
5:33 am-10:41 am
1 stop5h 08m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Fri 12/11
2:30 pm-8:23 pm
1 stop5h 53m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Sun 10/18
5:33 am-10:41 am
1 stop5h 08m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Mon 12/7
2:49 pm-10:53 pm
1 stop8h 04m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Wed 10/14
5:33 am-10:41 am
1 stop5h 08m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Fri 11/6
9:55 am-4:05 pm
1 stop6h 10m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
PortlandSanta Rosa
PDX Portland - STS Santa Rosa Sonoma County
PDXSTS
Portland
Sat 10/17
5:50 am-12:00 pm
1 stop6h 10m
Santa Rosa Sonoma County
Tue 10/20
6:35 am-2:55 pm
2 stops8h 20m
$162
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Portland to Santa Rosa
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Santa Rosa in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-Santa Rosa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Santa Rosa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Santa Rosa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Santa Rosa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Santa Rosa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
PDX-STS
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
Prices
Airlines
How far ahead should I book a flight from Portland to Santa Rosa?
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 27 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, January is the cheapest month in which you can book a flight from Portland to Santa Rosa (average of $217). Flying from Portland to Santa Rosa in August is currently the most expensive (average of $462). 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 September 12, 2026.
It’s optimal to fly from Portland to Santa Rosa in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at noon.
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 September 12, 2026.
Peruse reviews from past customers who have flown with Alaska 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.
Entertainment
7.0
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Entertainment
7.0
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
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.
Traveling to a place near Santa Rosa?
Book flights to Santa Rosa if you plan to visit one of these locationsFort Bragg
Ukiah
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Portland and Santa Rosa flights
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Other flights to Santa Rosa
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Top airline flying from Portland to Santa Rosa
Discover the top airline 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 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$157 | Average$322 | FlexibilityNo cancel fee | On-time75% |