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$161+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
STS — DEN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$328
(Alaska Airlines)

One-way from

$161
(Alaska Airlines)

Popular in

June

Cheapest in

January

Average price

$277
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. 11% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 11/17:46 pmSTS - DEN
1 stop15h 48mAlaska Airlines
Wed 11/57:04 pmDEN - STS
1 stop5h 52mAlaska Airlines
Deal found 6/10$263
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Sun 8/1712:59 pmSTS - DRO
1 stop4h 42mAmerican Airlines
Sat 8/235:55 amDRO - STS
1 stop7h 34mAmerican Airlines
Deal found 6/12$340
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:19 pmSTS - GJT
1 stop6h 55mAmerican Airlines
Sun 9/75:20 amGJT - STS
1 stop7h 35mAmerican Airlines
Deal found 6/11$401
This American Airlines deal was found by Cheapflights users on 6/12. 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 7/41:10 pmSTS - DEN
1 stop21h 20mAmerican Airlines
Fri 7/116:45 pmDEN - STS
1 stop18h 46mAmerican Airlines
Deal found 6/12$541
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/712:20 pmSTS - COS
1 stop7h 08mAmerican Airlines
Thu 7/175:00 amCOS - STS
2 stops8h 31mAmerican Airlines
Deal found 6/10$604

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 June 12, 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 11/1

7:46 pm-12:34 pm

1 stop15h 48m

Denver Intl

Wed 11/5

7:04 pm-11:56 pm

1 stop5h 52m

$263

Santa RosaDurango

STS - DRO

STSDRO

Santa Rosa Sonoma County

Sun 8/17

12:59 pm-6:41 pm

1 stop4h 42m

Durango La Plata County

Sat 8/23

5:55 am-12:29 pm

1 stop7h 34m

$340

Santa RosaGrand Junction

STS - GJT

STSGJT

Santa Rosa Sonoma County

Thu 9/4

4:19 pm-12:14 am

1 stop6h 55m

Grand Junction Regnl

Sun 9/7

5:20 am-11:55 am

1 stop7h 35m

$401

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Fri 7/4

1:10 pm-11:30 am

1 stop21h 20m

Denver Intl

Fri 7/11

6:45 pm-12:31 pm

1 stop18h 46m

$541

Santa RosaColorado Springs

STS - COS

STSCOS

Santa Rosa Sonoma County

Mon 7/7

12:20 pm-8:28 pm

1 stop7h 08m

Colorado Springs

Thu 7/17

5:00 am-12:31 pm

2 stops8h 31m

$604

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Wed 9/10

7:00 am-2:06 pm

1 stop6h 06m

$161

Santa RosaGrand Junction

STS - GJT

STSGJT

Santa Rosa Sonoma County

Fri 7/4

1:10 pm-6:29 pm

1 stop4h 19m

$266

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Thu 7/17

4:16 pm-9:42 pm

1 stop4h 26m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, October is the cheapest month in which you can book a flight from Santa Rosa to Colorado (average of $197). Flying from Santa Rosa to Colorado in March is currently the most expensive (average of $278). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Santa Rosa to Colorado as you normally would.

Rainfall in Colorado by month

Plan your trip to Colorado by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

Plan your trip to Colorado by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Santa Rosa to Colorado, such as Alaska Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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, October is the cheapest month in which you can book a flight from Santa Rosa to Colorado (average of $197). Flying from Santa Rosa to Colorado in March is currently the most expensive (average of $278). 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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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$278Average$540FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$302Average$495FlexibilityNo cancel feeOn-time75%

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