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Santa Rosa

$89+ Cheap flights from Denver to Santa Rosa (DEN - STS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — STS
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Denver to Santa Rosa

Cheapest flights from Denver to Santa Rosa
Explore the most affordable flight options available from Denver to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 4/257:00 am
DEN
-
STS
1 stop5h 08m
Alaska Airlines
Sat 5/23:00 pm
STS
-
DEN
1 stop18h 50m
Alaska Airlines
Deal found 1/21$197
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 4/257:00 am
DEN
-
STS
1 stop5h 08m
Alaska Airlines
Mon 4/278:00 pm
STS
-
DEN
1 stop26h 59m
Alaska Airlines
Deal found 1/21$210
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 2/287:00 am
DEN
-
STS
1 stop15h 52m
Alaska Airlines
Sat 3/77:57 pm
STS
-
DEN
1 stop14h 17m
Alaska Airlines
Deal found 1/20$217
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 4/117:25 am
DEN
-
STS
1 stop12h 55m
Alaska Airlines
Sat 4/187:00 am
STS
-
DEN
1 stop9h 24m
Alaska Airlines
Deal found 1/20$230
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 2/267:40 am
DEN
-
STS
1 stop17h 11m
Alaska Airlines
Tue 3/310:51 am
STS
-
DEN
1 stop12h 08m
Alaska Airlines
Deal found 1/21$243
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 2/107:00 am
DEN
-
STS
2 stops28h 25m
Alaska Airlines
Sat 2/146:50 pm
STS
-
DEN
1 stop14h 52m
Alaska Airlines
Deal found 1/20$245
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 2/261:10 pm
DEN
-
STS
1 stop11h 41m
Alaska Airlines
Wed 3/411:07 am
STS
-
DEN
2 stops11h 52m
Alaska Airlines
Deal found 1/21$248
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 2/2811:38 am
DEN
-
STS
1 stop6h 09m
Alaska Airlines
Wed 3/411:07 am
STS
-
DEN
2 stops11h 52m
Alaska Airlines
Deal found 1/21$255
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/256:45 pm
DEN
-
STS
2 stops25h 32m
Alaska Airlines
Sat 2/2810:51 am
STS
-
DEN
1 stop12h 08m
Alaska Airlines
Deal found 1/20$258
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 2/267:40 am
DEN
-
STS
1 stop17h 11m
Alaska Airlines
Sat 2/2810:51 am
STS
-
DEN
1 stop5h 57m
Alaska Airlines
Deal found 1/19$263

Find flight deals from Denver to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$197
(Alaska Airlines)

One-way from

$89
(Alaska Airlines)

Popular in

February

Cheapest in

December

Average price

$426
Provider with most accurate pricing for Denver Intl-Santa Rosa Sonoma County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Santa Rosa Sonoma County flights.
Search Deals
From Denver Intl to Santa Rosa Sonoma County
Search Deals
One-way flight from Denver Intl to Santa Rosa Sonoma County
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Denver to Santa Rosa that are best for you.

Fly from

Denver

Fly to

Santa Rosa

Route

Depart

Return

Price

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Sat 4/25

7:00 am-11:08 am

1 stop5h 08m

Santa Rosa Sonoma County

Mon 4/27

8:00 pm-11:59 pm

1 stop26h 59m

$210

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Wed 2/25

7:00 am-9:52 pm

1 stop15h 52m

Santa Rosa Sonoma County

Sat 2/28

10:51 am-5:48 pm

1 stop5h 57m

$230

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Fri 4/10

6:20 pm-11:13 pm

1 stop5h 53m

Santa Rosa Sonoma County

Tue 4/14

7:00 am-5:24 pm

1 stop9h 24m

$230

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Thu 2/26

7:40 am-11:51 pm

1 stop17h 11m

Santa Rosa Sonoma County

Tue 3/3

10:51 am-11:59 pm

1 stop12h 08m

$243

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Tue 2/10

7:00 am-10:25 am

2 stops28h 25m

Santa Rosa Sonoma County

Sat 2/14

6:50 pm-10:42 am

1 stop14h 52m

$245

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Thu 2/26

1:10 pm-11:51 pm

1 stop11h 41m

Santa Rosa Sonoma County

Wed 3/4

11:07 am-11:59 pm

2 stops11h 52m

$248

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Thu 2/26

7:40 am-11:51 pm

1 stop17h 11m

Santa Rosa Sonoma County

Sat 2/28

10:51 am-5:48 pm

1 stop5h 57m

$263

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Fri 5/8

1:02 pm-11:08 am

1 stop23h 06m

Santa Rosa Sonoma County

Mon 5/11

7:00 am-12:06 pm

1 stop28h 06m

$263

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Sat 2/28

7:00 am-4:47 pm

2 stops10h 47m

Santa Rosa Sonoma County

Tue 3/3

10:51 am-5:48 pm

1 stop5h 57m

$268

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Tue 2/24

6:45 pm-7:02 pm

1 stop25h 17m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 18 results
1
2

Compare providers for flights from Denver 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 Denver to Santa Rosa in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Santa Rosa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Santa Rosa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Santa Rosa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Santa Rosa flights, Cheapflights users trust Expedia the most. Expedia 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 Denver-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 Denver to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Denver with our price prediction graph.
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 Denver to Santa Rosa

What is the cheapest month to book a flight from Denver to Santa Rosa?

Currently, March is the cheapest month in which you can book a flight from Denver to Santa Rosa (average of $38). Flying from Denver to Santa Rosa in August is currently the most expensive (average of $110). 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.

How much does it cost to fly round-trip from Denver to Santa Rosa?

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 January 21, 2026.
Read through reviews of airlines operating flights from Denver to Santa Rosa, such as Alaska Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,775 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,775 reviews
Alaska Airlines
8.0
Very good
11,775 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,173 reviews
Alaska Airlines
8.0
Very good
11,775 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Denver to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Denver to Santa Rosa?

    Departing from Denver to Santa Rosa will take you 5h 08m. There are 974 mi between Denver and Santa Rosa.

  • What are the cheapest airlines flying from Denver to Santa Rosa round-trip?

    Cheapflights users have booked flights from Denver to Santa Rosa round-trip from $271. Another airline that can offer you cheap pricing is American Airlines. These flights start at 41% lower than the current average price 3 months from now.

  • Can I find deals for flights from Denver to Santa Rosa that include hotel bookings?

    Yes. In addition to deals on Denver to Santa Rosa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Santa Rosa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Santa Rosa.

  • Can I find deals for business class flights from Denver to Santa Rosa?

    Yes. Cheapflights offers flight deals from Denver to Santa Rosa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Santa Rosa?

    Currently, March is the cheapest month in which you can book a flight from Denver to Santa Rosa (average of $38). Flying from Denver to Santa Rosa in August is currently the most expensive (average of $110). 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.

See more FAQs

Traveling to a place near Santa Rosa?

Book flights to Santa Rosa if you plan to visit one of these locations
Fort Bragg
Ukiah

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Alternative routes for Denver to Santa Rosa

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Top 2 airlines flying from Denver to Santa Rosa

Discover the top 2 airlines that operate flights from Denver 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 2,558,603 searches. Data last updated January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$271Average$408FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$296Average$578FlexibilityNo cancel feeOn-time71%

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