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Santa Rosa

$107+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — STS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/2411:31 amDEN - STS
1 stop8h 31mAlaska Airlines
Thu 12/252:24 pmSTS - DEN
1 stop8h 35mAlaska Airlines
Deal found 12/11$389
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/317:20 amDEN - STS
2 stops17h 20mAlaska Airlines
Sun 1/48:17 pmSTS - DEN
1 stop13h 18mAlaska Airlines
Deal found 12/10$396
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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.
Thu 12/186:00 amDEN - STS
1 stop6h 23mAlaska Airlines
Thu 12/252:24 pmSTS - DEN
1 stop8h 35mAlaska Airlines
Deal found 12/11$580
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/2411:31 amDEN - STS
1 stop8h 31mAlaska Airlines
Mon 12/296:45 amSTS - DEN
1 stop28h 22mAlaska Airlines
Deal found 12/11$606
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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.
Sat 12/276:00 amDEN - STS
1 stop18h 59mAlaska Airlines
Wed 12/318:17 pmSTS - DEN
1 stop13h 18mAlaska Airlines
Deal found 12/11$616
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/196:02 amDEN - STS
1 stop8h 30mAlaska Airlines
Thu 12/257:00 amSTS - DEN
2 stops15h 59mAlaska Airlines
Deal found 12/11$629
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/2411:31 amDEN - STS
1 stop8h 31mAlaska Airlines
Fri 12/266:00 amSTS - DEN
2 stops14h 28mAlaska Airlines
Deal found 12/11$637

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 December 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$213
(Alaska Airlines)

One-way from

$107
(Alaska Airlines)

Popular in

April

Cheapest in

March

Average price

$316
Provider with most accurate pricing for Denver Intl-Santa Rosa Sonoma County flight deals.
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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
Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 2025.
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

Wed 2/4

7:00 am-8:58 am

2 stops26h 58m

Santa Rosa Sonoma County

Sat 2/7

6:50 am-4:13 pm

2 stops8h 23m

$213

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Sat 1/24

7:00 am-8:58 am

2 stops26h 58m

Santa Rosa Sonoma County

Sat 1/31

6:50 am-11:35 pm

2 stops15h 45m

$213

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Tue 1/27

5:09 pm-12:22 pm

2 stops20h 13m

Santa Rosa Sonoma County

Thu 1/29

9:33 pm-11:35 pm

1 stop25h 02m

$228

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Mon 1/26

5:09 pm-12:22 pm

2 stops20h 13m

Santa Rosa Sonoma County

Fri 1/30

4:09 pm-12:38 pm

2 stops19h 29m

$258

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Tue 1/6

6:02 am-7:02 pm

2 stops14h 00m

Santa Rosa Sonoma County

Sat 1/10

6:50 am-11:35 pm

2 stops15h 45m

$263

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Thu 3/5

11:38 am-10:32 am

2 stops23h 54m

Santa Rosa Sonoma County

Mon 3/9

8:00 am-11:59 pm

2 stops14h 59m

$268

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Wed 2/11

7:00 am-4:40 pm

2 stops10h 40m

$107

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Mon 1/12

5:09 pm-12:22 pm

2 stops20h 13m

$112

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Tue 1/13

5:09 pm-12:22 pm

2 stops20h 13m

$112

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Mon 2/9

1:34 pm-12:22 pm

2 stops23h 48m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 14 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 December.
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.

What is the cheapest time of day to fly from DEN to STS?

Find hourly flight availability from Denver 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 December 12, 2025.

When flying from Denver to Santa Rosa, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 19% versus a flight in the morning.

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 December 12, 2025.
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
11,431 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,431 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 26h 58m. 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 40% 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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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$271Average$539FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$296Average$545FlexibilityNo cancel feeOn-time71%

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