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Santa Rosa

$89+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — STS
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
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 January 20, 2026.

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.
Sat 4/257:00 am
DEN
-
STS
1 stop5h 08m
Alaska Airlines
Sat 5/27:45 am
STS
-
DEN
1 stop26h 05m
Alaska Airlines
Deal found 1/19$197
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.
Sat 4/111:16 pm
DEN
-
STS
1 stop7h 04m
Alaska Airlines
Sat 4/187:00 am
STS
-
DEN
1 stop9h 24m
Alaska Airlines
Deal found 1/19$230
This Alaska Airlines deal was found by Cheapflights users on 1/17. 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 2/286:16 pm
DEN
-
STS
1 stop17h 16m
Alaska Airlines
Wed 3/411:07 am
STS
-
DEN
2 stops11h 52m
Alaska Airlines
Deal found 1/17$235
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 1/19. 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
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.
Thu 5/77:05 pm
DEN
-
STS
1 stop5h 21m
Alaska Airlines
Sun 5/1010:01 am
STS
-
DEN
1 stop25h 05m
Alaska Airlines
Deal found 1/20$291
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/311:56 am
GJT
-
STS
1 stop4h 57m
American Airlines
Sat 2/712:55 pm
STS
-
GJT
1 stop4h 24m
American Airlines
Deal found 1/19$431
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:08 pm
GJT
-
STS
1 stop4h 45m
American Airlines
Sun 4/512:56 pm
STS
-
GJT
1 stop7h 27m
American Airlines
Deal found 1/20$491
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2212:02 pm
GJT
-
STS
1 stop4h 51m
American Airlines
Tue 5/264:26 pm
STS
-
GJT
1 stop4h 29m
American Airlines
Deal found 1/20$506
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:00 am
GJT
-
STS
1 stop6h 26m
American Airlines
Mon 4/64:23 pm
STS
-
GJT
1 stop17h 56m
American Airlines
Deal found 1/20$539
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/222:14 pm
EGE
-
STS
1 stop23h 11m
American Airlines
Tue 5/261:05 pm
STS
-
EGE
1 stop19h 49m
American Airlines
Deal found 1/20$1,130
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 1/291:36 pm
EGE
-
STS
2 stops20h 22m
Alaska Airlines
Mon 2/24:09 pm
STS
-
EGE
2 stops48h 32m
Alaska Airlines
Deal found 1/19$1,137

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 January 20, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$197
(Alaska Airlines)

One-way from

$89
(Alaska Airlines)

Popular in

July

Cheapest in

February

Average price

$220
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.
Search Deals
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. 10% potential increase in price ($27 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 January 2026
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 January 20, 2026.
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

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

Tue 2/10

7:00 am-10:35 am

1 stop28h 35m

Santa Rosa Sonoma County

Sat 2/14

6:50 pm-10:42 am

1 stop14h 52m

$257

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 5/2

11:46 am-10:57 pm

2 stops12h 11m

Santa Rosa Sonoma County

Sat 5/9

10:01 am-6:25 pm

1 stop7h 24m

$275

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Sat 5/2

8:45 am-10:20 am

Nonstop2h 35m

Santa Rosa Sonoma County

Sat 5/9

10:55 am-4:25 pm

1 stop4h 30m

$287

DenverSanta Rosa

DEN - STS

DENSTS

Denver Intl

Thu 4/9

7:25 am-11:13 pm

1 stop16h 48m

Santa Rosa Sonoma County

Sun 4/12

9:43 am-12:20 pm

2 stops25h 37m

$315

Grand JunctionSanta Rosa

GJT - STS

GJTSTS

Grand Junction Regnl

Tue 2/3

11:56 am-3:53 pm

1 stop4h 57m

Santa Rosa Sonoma County

Sat 2/7

12:55 pm-6:19 pm

1 stop4h 24m

$431

Grand JunctionSanta Rosa

GJT - STS

GJTSTS

Grand Junction Regnl

Wed 4/1

12:08 pm-3:53 pm

1 stop4h 45m

Santa Rosa Sonoma County

Sun 4/5

12:56 pm-9:23 pm

1 stop7h 27m

$491

Grand JunctionSanta Rosa

GJT - STS

GJTSTS

Grand Junction Regnl

Wed 4/1

7:00 am-12:26 pm

1 stop6h 26m

Santa Rosa Sonoma County

Mon 4/6

4:23 pm-11:19 am

1 stop17h 56m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 20 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.

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 4h 57m. Alaska Airlines provides one of the quickest options available for as low as $431. Airlines will cover a distance of 769 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, Vail Eagle County - Santa Rosa Sonoma County and Aspen Pitkin County - 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$271Average$408FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$296Average$578FlexibilityNo cancel feeOn-time71%

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