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Santa Rosa

$84+ Cheap flights from Colorado to Santa Rosa (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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — STS
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Colorado to Santa Rosa

Cheapest flights from Colorado to Santa Rosa
Explore the most affordable flight options available from Colorado to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/3. 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 12/176:45 amDEN - STS
1 stop7h 44mAlaska Airlines
Sat 1/36:00 amSTS - DEN
1 stop16h 59mAlaska Airlines
Deal found 12/3$395
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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
Sat 1/36:00 amSTS - DEN
1 stop16h 59mAlaska Airlines
Deal found 12/3$480
This American Airlines deal was found by Cheapflights users on 12/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:58 amDEN - STS
1 stop5h 53mAmerican Airlines
Sat 1/34:21 pmSTS - DEN
1 stop5h 28mAmerican Airlines
Deal found 12/3$543
This American Airlines deal was found by Cheapflights users on 12/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1910:58 amDEN - STS
1 stop5h 53mAmerican Airlines
Tue 12/234:21 pmSTS - DEN
1 stop5h 27mAmerican Airlines
Deal found 12/4$558
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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 12/196:00 amDEN - STS
1 stop6h 23mAlaska Airlines
Sat 1/37:00 amSTS - DEN
2 stops15h 59mAlaska Airlines
Deal found 12/3$564
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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 12/166:59 pmDEN - STS
1 stop20h 37mAlaska Airlines
Mon 12/227:00 amSTS - DEN
2 stops11h 18mAlaska Airlines
Deal found 12/3$610
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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 12/146:59 pmDEN - STS
2 stops24h 04mAlaska Airlines
Mon 12/227:00 amSTS - DEN
2 stops11h 18mAlaska Airlines
Deal found 12/3$615
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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 12/196:48 pmDEN - STS
2 stops29h 52mAlaska Airlines
Tue 12/237:00 amSTS - DEN
2 stops15h 59mAlaska Airlines
Deal found 12/4$627
This American Airlines deal was found by Cheapflights users on 12/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:30 amGJT - STS
1 stop5h 57mAmerican Airlines
Fri 12/512:57 pmSTS - GJT
1 stop4h 24mAmerican Airlines
Deal found 12/3$681
This American Airlines deal was found by Cheapflights users on 12/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:33 amASE - STS
2 stops9h 23mAmerican Airlines
Fri 12/512:57 pmSTS - ASE
2 stops21h 52mAmerican Airlines
Deal found 12/3$975
This American Airlines deal was found by Cheapflights users on 12/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:09 pmGJT - STS
1 stop23h 18mAmerican Airlines
Thu 12/44:26 pmSTS - GJT
1 stop5h 33mAmerican Airlines
Deal found 12/3$1,011
This American Airlines deal was found by Cheapflights users on 12/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:25 pmASE - STS
2 stops25h 02mAmerican Airlines
Fri 12/512:57 pmSTS - ASE
2 stops21h 52mAmerican Airlines
Deal found 12/3$1,556

Find flight deals from Colorado to Santa Rosa

Keep the following information in mind while searching for Colorado to Santa Rosa flight deals. Data was last updated December 4, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$216
(Alaska Airlines)

One-way from

$84
(Alaska Airlines)

Popular in

July

Cheapest in

January

Average price

$256
Provider with most accurate pricing for Denver Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-San Francisco flights.
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From Colorado to Santa Rosa Sonoma County
Search Deals
One-way flight from Colorado to Santa Rosa Sonoma County
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 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 Colorado 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 4, 2025.
Use the filters below to find and compare flights from Colorado to Santa Rosa that are best for you.

Fly from

Colorado

Fly to

Santa Rosa

Route

Depart

Return

Price

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Mon 1/12

7:00 am-11:59 pm

1 stop17h 59m

Santa Rosa Sonoma County

Thu 1/15

6:52 pm-11:38 am

1 stop15h 46m

$216

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Thu 1/15

11:49 am-8:41 pm

1 stop9h 52m

Santa Rosa Sonoma County

Sun 1/18

9:38 am-11:58 pm

1 stop13h 20m

$240

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Mon 1/12

5:09 pm-11:59 pm

1 stop7h 50m

Santa Rosa Sonoma County

Mon 1/19

6:50 am-10:53 am

1 stop27h 03m

$240

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Wed 1/7

8:04 am-7:19 pm

1 stop12h 15m

Santa Rosa Sonoma County

Sat 1/10

11:15 am-11:35 pm

1 stop11h 20m

$263

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Thu 1/8

7:00 am-10:58 pm

2 stops16h 58m

Santa Rosa Sonoma County

Sun 1/18

10:36 am-11:58 pm

2 stops12h 22m

$268

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Thu 1/1

7:20 am-12:18 am

2 stops17h 58m

Santa Rosa Sonoma County

Thu 1/8

9:38 am-6:41 pm

1 stop8h 03m

$270

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Tue 1/6

11:31 am-7:02 pm

1 stop8h 31m

$84

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Tue 3/3

11:38 am-4:47 pm

1 stop6h 09m

$84

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Wed 3/4

11:38 am-4:47 pm

1 stop6h 09m

$84

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Mon 3/2

6:45 pm-11:09 pm

1 stop5h 24m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 15 results
1
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Best time to book a flight from Colorado to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Colorado 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 Colorado to Santa Rosa

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

Currently, March is the cheapest month in which you can book a flight from Colorado to Santa Rosa (average of $38). Flying from Colorado 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 CO to STS?

Find hourly flight availability from Colorado 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 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Colorado to Santa Rosa at noon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the afternoon.

Related info for your journey

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

  • What airport do you fly into for flights to Santa Rosa from Colorado?

    If you book a flight to Santa Rosa from Colorado, you will be flying to Sonoma County, which is the city’s only airport. Santa Rosa Sonoma County (STS) is located 7.2 mi from the center of Santa Rosa.

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

    A quick flight from Colorado to Santa Rosa can take about 17h 59m. Alaska Airlines provides one of the quickest options available for as low as $216. Airlines will cover a distance of 974 mi.

  • What are the most popular routes from Colorado to Santa Rosa?

    The most popular flight routes from Colorado to Santa Rosa are Denver Intl - Santa Rosa Sonoma County, Aspen Pitkin County - Santa Rosa Sonoma County and Grand Junction Regnl - Santa Rosa Sonoma County.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Colorado 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 Colorado to Santa Rosa?

    Currently, March is the cheapest month in which you can book a flight from Colorado to Santa Rosa (average of $38). Flying from Colorado 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 Colorado to Santa Rosa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Colorado to Santa Rosa

Discover the top 2 airlines that operate flights from Colorado 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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$271Average$539FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$296Average$505FlexibilityNo cancel feeOn-time71%

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