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$90+ Cheap flights from Santa Rosa (STS) to Colorado

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.
STS — DEN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Santa Rosa to Colorado

Cheapest flights from Santa Rosa to Colorado
Explore the most affordable flight options available from Santa Rosa to Colorado. 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 12/2. 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 12/257:00 amSTS - DEN
2 stops15h 59mAlaska Airlines
Mon 1/56:48 pmDEN - STS
1 stop6h 11mAlaska Airlines
Deal found 12/2$263
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 12/257:00 amSTS - DEN
2 stops15h 59mAlaska Airlines
Wed 12/317:20 amDEN - STS
2 stops17h 20mAlaska Airlines
Deal found 12/2$283
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 12/318:17 pmSTS - DEN
1 stop13h 18mAlaska Airlines
Mon 1/56:00 amDEN - STS
1 stop18h 59mAlaska Airlines
Deal found 12/2$297
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 12/257:00 amSTS - DEN
2 stops15h 59mAlaska Airlines
Thu 1/17:20 amDEN - STS
1 stop12h 50mAlaska Airlines
Deal found 12/2$308
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 12/248:17 pmSTS - DEN
1 stop20h 58mAlaska Airlines
Wed 12/317:20 amDEN - STS
2 stops17h 20mAlaska Airlines
Deal found 12/2$318
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 12/1912:59 pmSTS - COS
2 stops9h 48mAmerican Airlines
Tue 12/236:00 amCOS - STS
2 stops10h 51mAmerican Airlines
Deal found 12/4$1,030
This American Airlines deal was found by Cheapflights users on 12/2. 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.
Mon 12/84:26 pmSTS - COS
2 stops18h 20mAmerican Airlines
Thu 12/115:33 amCOS - STS
2 stops11h 23mAmerican Airlines
Deal found 12/2$1,059
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 12/57:00 amSTS - COS
2 stops9h 35mAmerican Airlines
Fri 12/1210:37 amCOS - STS
2 stops13h 17mAmerican Airlines
Deal found 12/4$2,215

Find flight deals from Santa Rosa to Colorado

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

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$152
(CheapTickets)

One-way from

$90
(Expedia)

Popular in

June

Cheapest in

January

Average price

$257
Provider with most accurate pricing for San Francisco-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Denver Intl flights.
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From Santa Rosa Sonoma County to Colorado
Search Deals
One-way flight from Santa Rosa Sonoma County to Colorado
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Colorado 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 Santa Rosa to Colorado that are best for you.

Fly from

Santa Rosa

Fly to

Colorado

Route

Depart

Return

Price

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Mon 1/12

9:38 am-6:41 pm

1 stop8h 03m

Denver Intl

Tue 2/3

12:34 pm-7:19 pm

1 stop7h 45m

$192

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 1/13

6:50 am-12:38 pm

2 stops28h 48m

Denver Intl

Wed 1/28

12:34 pm-7:19 pm

1 stop7h 45m

$201

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Mon 1/12

6:30 pm-12:38 pm

2 stops17h 08m

Denver Intl

Wed 1/28

12:34 pm-7:19 pm

1 stop7h 45m

$206

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Fri 1/9

7:00 am-11:35 pm

2 stops15h 35m

Denver Intl

Tue 2/3

12:34 pm-7:19 pm

1 stop7h 45m

$206

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Thu 1/8

9:38 am-6:41 pm

1 stop8h 03m

Denver Intl

Sat 1/31

8:04 am-2:29 pm

1 stop7h 25m

$216

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Thu 1/22

11:15 am-11:35 pm

1 stop11h 20m

Denver Intl

Sat 1/24

1:34 pm-8:58 am

2 stops20h 24m

$225

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Mon 1/12

9:38 am-6:41 pm

1 stop8h 03m

Denver Intl

Wed 1/21

12:34 pm-6:12 pm

2 stops30h 38m

$225

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 1/13

6:50 am-11:35 pm

2 stops15h 45m

Denver Intl

Fri 1/30

7:39 pm-2:29 pm

1 stop19h 50m

$228

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Thu 1/22

9:38 am-6:41 pm

1 stop8h 03m

Denver Intl

Sun 1/25

7:00 am-8:41 pm

2 stops14h 41m

$230

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Wed 1/7

7:00 am-11:35 pm

2 stops15h 35m

Denver Intl

Sat 1/31

8:04 am-2:29 pm

1 stop7h 25m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 25 results
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2
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Best time to book a flight from Santa Rosa to Colorado

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

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

Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Colorado (average of $28). Flying from Santa Rosa to Colorado in June is currently the most expensive (average of $102). 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 STS to CO?

Find hourly flight availability from Santa Rosa to Colorado. 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 Santa Rosa to Colorado in the evening. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated December 4, 2025.
Read reviews from past customers who have flown Alaska Airlines and American Airlines from Santa Rosa to Colorado. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,399 reviews

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Alaska Airlines
8.0
Very good
11,399 reviews
Alaska Airlines
8.0
Very good
11,399 reviews

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
American Airlines
7.2
Good
11,044 reviews
Alaska Airlines
8.0
Very good
11,399 reviews

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Colorado. 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 from for flights from Santa Rosa to Colorado?

    Most people fly from Santa Rosa Sonoma County (STS) if they book a flight from Santa Rosa to Colorado. Santa Rosa Sonoma County is conveniently located just 7.2 mi from Santa Rosa’s city center.

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

    A quick flight from Santa Rosa to Colorado can take about 4h 24m. Alaska Airlines provides one of the quickest options available for as low as $430. Airlines will cover a distance of 826 mi. This flight may include one or multiple stops.

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

    While some choose either Santa Rosa Sonoma County - Colorado Springs or Santa Rosa Sonoma County - Durango La Plata County, Santa Rosa Sonoma County - Denver Intl is the most popular route from Santa Rosa to Colorado.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Colorado (average of $28). Flying from Santa Rosa to Colorado in June is currently the most expensive (average of $102). 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

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Alternative routes for Santa Rosa to Colorado

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Top 2 airlines flying from Santa Rosa to Colorado

Discover the top 2 airlines that operate flights from Santa Rosa to Colorado. 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$262Average$500FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$278Average$527FlexibilityNo cancel feeOn-time71%

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