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$117+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
STS — DEN
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheap 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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$201
(SmartFares)

One-way from

$117
(Alaska Airlines)

Popular in

June

Cheapest in

January

Average price

$228
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
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One-way flight from Santa Rosa Sonoma County to Colorado
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Highest demand for flights based on searches. 9% potential increase in price ($24 potential increase over avg. RT price).
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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 October 2025
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Find 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 October 20, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/20. 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 12/66:58 pmSTS - DEN
1 stop23h 26mAlaska Airlines
Wed 12/1010:05 amDEN - STS
1 stop13h 49mAlaska Airlines
Deal found 10/20$218
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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 12/46:43 pmSTS - DEN
1 stop16h 18mAlaska Airlines
Thu 12/116:00 amDEN - STS
2 stops18h 52mAlaska Airlines
Deal found 10/20$220
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 11/116:49 amSTS - DEN
1 stop11h 17mAlaska Airlines
Wed 11/127:04 pmDEN - STS
1 stop5h 53mAlaska Airlines
Deal found 10/18$222
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:58 pmSTS - DEN
1 stop28h 01mHawaiian Airlines
Wed 12/176:59 pmDEN - STS
1 stop4h 55mHawaiian Airlines
Deal found 10/18$229
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 11/117:46 pmSTS - DEN
1 stop22h 20mAlaska Airlines
Tue 11/181:23 pmDEN - STS
2 stops20h 21mAlaska Airlines
Deal found 10/18$234
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 11/96:49 amSTS - DEN
1 stop27h 45mAlaska Airlines
Tue 11/188:20 amDEN - STS
1 stop8h 42mAlaska Airlines
Deal found 10/18$237
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 11/118:03 pmSTS - DEN
2 stops15h 24mAlaska Airlines
Sat 11/1512:49 pmDEN - STS
1 stop12h 08mAlaska Airlines
Deal found 10/18$244
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 12/134:04 pmSTS - DEN
2 stops18h 40mAlaska Airlines
Wed 12/176:45 amDEN - STS
2 stops13h 30mAlaska Airlines
Deal found 10/18$245
This CheapTickets deal was found by Cheapflights users on 10/20. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:00 amSTS - DEN
1 stop14h 59mHawaiian Airlines
Sat 12/136:59 pmDEN - STS
1 stop4h 55mHawaiian Airlines
Deal found 10/20$248
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Fri 11/1412:37 pmSTS - GJT
1 stop4h 44mAmerican Airlines
Tue 11/185:30 amGJT - STS
1 stop7h 37mAmerican Airlines
Deal found 10/19$471
This American Airlines deal was found by Cheapflights users on 10/20. 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.
Tue 11/111:18 pmSTS - DRO
1 stop7h 08mAmerican Airlines
Mon 11/248:25 amDRO - STS
1 stop5h 23mAmerican Airlines
Deal found 10/20$645
This American Airlines deal was found by Cheapflights users on 10/18. 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 11/122:10 pmSTS - DRO
1 stop20h 07mAmerican Airlines
Sat 11/158:25 amDRO - STS
1 stop5h 23mAmerican Airlines
Deal found 10/18$678

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 October 20, 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

Sat 12/6

6:58 pm-7:24 pm

1 stop23h 26m

Denver Intl

Wed 12/10

10:05 am-10:54 pm

1 stop13h 49m

$218

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 11/11

7:46 pm-7:06 pm

1 stop22h 20m

Denver Intl

Sat 11/15

8:20 am-11:57 pm

1 stop16h 37m

$222

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 11/11

7:46 pm-7:06 pm

1 stop22h 20m

Denver Intl

Mon 11/17

8:02 pm-8:44 am

2 stops13h 42m

$234

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 1/6

6:45 am-7:18 pm

1 stop11h 33m

Denver Intl

Thu 1/15

8:04 am-11:01 pm

1 stop15h 57m

$237

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Mon 11/10

7:46 pm-7:06 pm

1 stop22h 20m

Denver Intl

Fri 11/14

7:19 pm-11:20 am

1 stop17h 01m

$237

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Sun 3/1

6:58 am-6:33 pm

1 stop10h 35m

Denver Intl

Tue 3/3

7:04 pm-11:07 am

1 stop17h 03m

$237

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Sun 11/9

6:49 am-11:34 am

1 stop27h 45m

Denver Intl

Sat 11/15

12:49 pm-11:57 pm

1 stop12h 08m

$237

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Sat 12/13

10:59 am-11:59 pm

2 stops12h 00m

Denver Intl

Wed 12/17

6:59 pm-10:54 pm

1 stop4h 55m

$243

Santa RosaGrand Junction

STS - GJT

STSGJT

Santa Rosa Sonoma County

Fri 11/14

12:37 pm-6:21 pm

1 stop4h 44m

Grand Junction Regnl

Tue 11/18

5:30 am-12:07 pm

1 stop7h 37m

$471

Santa RosaColorado Springs

STS - COS

STSCOS

Santa Rosa Sonoma County

Tue 4/14

12:46 pm-11:25 pm

2 stops9h 39m

Colorado Springs

Wed 4/15

6:17 am-3:47 pm

2 stops10h 30m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 29 results
1
2
3

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 October 20, 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 October 20, 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
11,136 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

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
11,136 reviews
Alaska Airlines
8.0
Very good
11,136 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

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
11,023 reviews
Alaska Airlines
8.0
Very good
11,136 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

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 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 44m. Alaska Airlines provides one of the quickest options available for as low as $471. Airlines will cover a distance of 769 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 - Grand Junction Regnl, 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$275Average$503FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$278Average$526FlexibilityNo cancel feeOn-time71%

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