What are the cheapest airlines flying from Santa Rosa to Denver round-trip?

Our cheapest airline available from Santa Rosa to Denver is Alaska Airlines. Our recent data shows that you can find tickets from as low as $212 on this airline. An additional option worth looking into is Hawaiian Airlines, starting at $245. Users have found that Alaska Airlines is 56% cheaper than the other options available to this destination.

What is the cheapest day to fly from Santa Rosa to Denver?

Travelers seeking maximum savings on their Santa Rosa to Denver flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Denver 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 Denver when rainfall is around 0.5 in.

If weather is an important factor for your trip to Denver, 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).

What is the cheapest day to fly round-trip from Santa Rosa to Denver?

Sunday flights are found to be more expensive to fly from Santa Rosa to Denver. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Denver.

How far in advance should I book a flight from Santa Rosa to Denver?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 29 days in advance, which can save you up to 37% on flights from Santa Rosa to Denver compared to booking the week you need them. Waiting 29 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $181. For sooner than that we have options available in the next 3 days from $329.

What is the cheapest month to fly from Santa Rosa to Denver?

October is one of the best times of the year to fly to Denver from Santa Rosa. Prices for October average $228 per person but you can even find prices for as low as $73. The most expensive prices can be found in the month of June. Opting for a October flight can save you 21% on your journey compared to booking in June

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

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

How can I find direct flights from Santa Rosa to Denver?

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

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

Yes. Cheapflights offers flight deals from Santa Rosa to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$106+ Flights from Santa Rosa to Denver

Q: How much does it cost to fly round-trip from Santa Rosa to Denver?

Airfare is below average for this route at the moment. Santa Rosa to Denver flights typically cost between $470 and $662 in December. The cheapest round-trip price found within the last 3 days was $212 on Alaska Airlines (Dec 13-Dec 17).

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Find cheap flights from Santa Rosa to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Santa Rosa Sonoma County to Denver Intl are usually found in February or January, booked 62 days in advance, depart on a Thursday or Tuesday and return on a Sunday

Cheap flight deals from Santa Rosa to Denver

Round-trip from	$212 (Alaska Airlines)
One-way from	$106 (Hawaiian Airlines)
Popular in	July
Cheapest in	February
Average price	$539

From Santa Rosa Sonoma County to Denver Intl

Search Deals

One-way flight from Santa Rosa Sonoma County to Denver Intl

Search Deals

Highest demand for flights based on searches. 21% potential increase in price ($131 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Santa Rosa to Denver

Cheapest flights from Santa Rosa to Denver
Explore the most affordable flight options available from Santa Rosa to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.

Sat 12/137:28 pmSTS - DEN

1 stop14h 51mAlaska Airlines

Wed 12/178:20 amDEN - STS

1 stop15h 26mAlaska Airlines

Deal found 8/11

$212

Sat 12/62:45 pmSTS - DEN

1 stop6h 54mHawaiian Airlines

Wed 12/107:04 pmDEN - STS

1 stop4h 42mHawaiian Airlines

Deal found 8/8

$245

Mon 11/36:49 amSTS - DEN

1 stop11h 17mAlaska Airlines

Sat 11/811:31 amDEN - STS

1 stop8h 56mAlaska Airlines

Deal found 8/9

$255

Sat 12/66:58 amSTS - DEN

1 stop10h 35mAlaska Airlines

Wed 12/1011:30 amDEN - STS

2 stops10h 46mAlaska Airlines

Deal found 8/8

$261

Fri 10/32:28 pmSTS - DEN

2 stops26h 34mAlaska Airlines

Wed 10/157:01 amDEN - STS

1 stop8h 15mAlaska Airlines

Deal found 8/10

$264

Sat 10/46:30 amSTS - DEN

1 stop6h 30mAlaska Airlines

Mon 10/63:00 pmDEN - STS

1 stop20h 07mAlaska Airlines

Deal found 8/9

$267

Fri 10/37:52 pmSTS - DEN

1 stop17h 08mAlaska Airlines

Mon 10/67:50 pmDEN - STS

1 stop15h 17mAlaska Airlines

Deal found 8/9

$287

Wed 9/103:07 pmSTS - DEN

1 stop6h 58mAlaska Airlines

Wed 9/176:00 amDEN - STS

1 stop6h 14mAlaska Airlines

Deal found 8/10

$292

Tue 9/162:28 pmSTS - DEN

1 stop6h 34mAlaska Airlines

Sat 9/2011:40 amDEN - STS

2 stops9h 43mAlaska Airlines

Deal found 8/10

$297

Best flights from Santa Rosa to Denver
Discover carefully curated flight deals from Santa Rosa to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2025.

Sat 12/137:28 pmSTS - DEN

1 stop14h 51mAlaska Airlines

Wed 12/178:20 amDEN - STS

1 stop15h 26mAlaska Airlines

Deal found 8/11

$212

Sat 12/62:45 pmSTS - DEN

1 stop6h 54mHawaiian Airlines

Wed 12/107:04 pmDEN - STS

1 stop4h 42mHawaiian Airlines

Deal found 8/8

$245

Mon 11/36:49 amSTS - DEN

1 stop11h 17mAlaska Airlines

Sat 11/811:31 amDEN - STS

1 stop8h 56mAlaska Airlines

Deal found 8/9

$255

Sat 12/66:58 amSTS - DEN

1 stop10h 35mAlaska Airlines

Wed 12/1011:30 amDEN - STS

2 stops10h 46mAlaska Airlines

Deal found 8/8

$261

Fri 10/32:28 pmSTS - DEN

2 stops26h 34mAlaska Airlines

Wed 10/157:01 amDEN - STS

1 stop8h 15mAlaska Airlines

Deal found 8/10

$264

Sat 10/46:30 amSTS - DEN

1 stop6h 30mAlaska Airlines

Mon 10/63:00 pmDEN - STS

1 stop20h 07mAlaska Airlines

Deal found 8/9

$267

Fri 10/37:52 pmSTS - DEN

1 stop17h 08mAlaska Airlines

Mon 10/67:50 pmDEN - STS

1 stop15h 17mAlaska Airlines

Deal found 8/9

$287

Wed 9/103:07 pmSTS - DEN

1 stop6h 58mAlaska Airlines

Wed 9/176:00 amDEN - STS

1 stop6h 14mAlaska Airlines

Deal found 8/10

$292

Tue 9/162:28 pmSTS - DEN

1 stop6h 34mAlaska Airlines

Sat 9/2011:40 amDEN - STS

2 stops9h 43mAlaska Airlines

Deal found 8/10

$297

Last-minute flights from Santa Rosa to Denver
Discover last-minute flight deals from Santa Rosa to Denver. Data last updated August 11, 2025 and is based on user searches.

Wed 8/2011:54 amSTS - DEN

2 stops7h 33mAlaska Airlines

Mon 8/256:17 pmDEN - STS

2 stops25h 55mAlaska Airlines

Deal found 8/11

$648

Thu 8/213:07 pmSTS - DEN

1 stop7h 03mAlaska Airlines

Sat 8/3011:59 amDEN - STS

1 stop8h 13mAlaska Airlines

Deal found 8/9

$595

Thu 8/217:00 amSTS - DEN

1 stop6h 06mAlaska Airlines

Sun 8/318:00 amDEN - STS

1 stop6h 36mAlaska Airlines

Deal found 8/9

$619

Thu 9/43:07 pmSTS - DEN

1 stop6h 58mAlaska Airlines

Tue 9/911:56 amDEN - STS

1 stop8h 16mAlaska Airlines

Deal found 8/10

$302

Wed 9/103:07 pmSTS - DEN

1 stop6h 58mAlaska Airlines

Wed 9/176:00 amDEN - STS

1 stop6h 14mAlaska Airlines

Deal found 8/10

$292

Wed 9/107:03 amSTS - DEN

2 stops13h 59mAlaska Airlines

Tue 9/163:02 pmDEN - STS

1 stop6h 21mAlaska Airlines

Deal found 8/10

$314

Wed 9/102:28 pmSTS - DEN

1 stop6h 34mAlaska Airlines

Sat 9/2011:40 amDEN - STS

2 stops9h 43mAlaska Airlines

Deal found 8/10

$328

Mon 9/157:00 amSTS - DEN

1 stop28h 10mAlaska Airlines

Tue 9/163:02 pmDEN - STS

1 stop6h 21mAlaska Airlines

Deal found 8/10

$320

Tue 9/162:28 pmSTS - DEN

1 stop6h 34mAlaska Airlines

Sat 9/2011:40 amDEN - STS

2 stops9h 43mAlaska Airlines

Deal found 8/10

$297

Tue 9/167:00 amSTS - DEN

1 stop6h 06mAlaska Airlines

Tue 9/169:23 pmDEN - STS

1 stop17h 13mAlaska Airlines

Deal found 8/10

$310

Tue 9/162:28 pmSTS - DEN

1 stop6h 34mAlaska Airlines

Fri 9/196:17 pmDEN - STS

2 stops17h 57mAlaska Airlines

Deal found 8/10

$316

Tue 9/167:00 amSTS - DEN

1 stop6h 06mAlaska Airlines

Mon 9/229:23 pmDEN - STS

2 stops12h 25mAlaska Airlines

Deal found 8/10

$324

One-way flights from Santa Rosa to Denver
Search for one-way flight options from Santa Rosa to Denver. Find affordable one-way fares based on user searches. Data last updated August 11, 2025.

Wed 10/153:34 pmSTS - DEN

1 stop7h 13mHawaiian Airlines

Deal found 8/11

$106

Tue 10/77:53 pmSTS - DEN

1 stop17h 07mAlaska Airlines

Deal found 8/11

$112

Wed 10/17:00 amSTS - DEN

1 stop6h 06mHawaiian Airlines

Deal found 8/11

$139

Wed 10/159:43 amSTS - DEN

2 stops13h 04mAlaska Airlines

Deal found 8/11

$142

Wed 9/33:07 pmSTS - DEN

1 stop6h 58mAlaska Airlines

Deal found 8/9

$146

Mon 11/37:45 amSTS - DEN

1 stop7h 09mAlaska Airlines

Deal found 8/11

$156

Wed 10/16:00 amSTS - DEN

2 stops13h 27mAlaska Airlines

Deal found 8/11

$157

Thu 9/187:03 amSTS - DEN

1 stop9h 33mMultiple Airlines

Deal found 8/10

$168

Sun 10/56:25 amSTS - DEN

1 stop6h 35mHawaiian Airlines

Deal found 8/11

$181

Thu 9/186:56 pmSTS - DEN

2 stops26h 06mAlaska Airlines

Deal found 8/10

$200

Fly from

Fly to

Route

Depart

Return

Price

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Sat 12/13

7:28 pm-11:19 am

1 stop14h 51m

Denver Intl

Wed 12/17

8:20 am-10:46 pm

1 stop15h 26m

$212

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Sat 12/6

2:45 pm-10:39 pm

1 stop6h 54m

Denver Intl

Wed 12/10

7:04 pm-10:46 pm

1 stop4h 42m

$245

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Mon 11/3

6:49 am-7:06 pm

1 stop11h 17m

Denver Intl

Sat 11/8

11:31 am-7:27 pm

1 stop8h 56m

$255

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Sat 12/6

6:58 am-6:33 pm

1 stop10h 35m

Denver Intl

Wed 12/10

11:30 am-9:16 pm

2 stops10h 46m

$261

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Fri 10/3

2:28 pm-6:02 pm

2 stops26h 34m

Denver Intl

Wed 10/15

7:01 am-2:16 pm

1 stop8h 15m

$264

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Sat 10/4

6:30 am-2:00 pm

1 stop6h 30m

Denver Intl

Mon 10/6

3:00 pm-10:07 am

1 stop20h 07m

$267

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Fri 10/3

7:52 pm-2:00 pm

1 stop17h 08m

Denver Intl

Mon 10/6

7:50 pm-10:07 am

1 stop15h 17m

$287

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Wed 9/10

3:07 pm-11:05 pm

1 stop6h 58m

Denver Intl

Wed 9/17

6:00 am-11:14 am

1 stop6h 14m

$292

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 9/16

2:28 pm-10:02 pm

1 stop6h 34m

Denver Intl

Sat 9/20

11:40 am-8:23 pm

2 stops9h 43m

$297

Santa RosaDenver

STS - DEN

STSDEN

Santa Rosa Sonoma County

Wed 10/15

3:34 pm-11:47 pm

1 stop7h 13m

$106

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 19 results

Best time to book a flight from Santa Rosa to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

How far ahead should I book a flight from Santa Rosa to Denver?

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Santa Rosa to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Santa Rosa to Denver (average of $197). Flying from Santa Rosa to Denver 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 DEN?

One of the essential ways to save on airfare from Santa Rosa to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 29% on airfare.

How much does it cost to fly round-trip from Santa Rosa to Denver?

Reviews of airlines servicing Denver

Read through reviews of airlines operating flights from Santa Rosa to Denver, such as Alaska Airlines, Hawaiian Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

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

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.8

Good

2,647 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

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

What are the cheapest airlines flying from Santa Rosa to Denver round-trip?
Our cheapest airline available from Santa Rosa to Denver is Alaska Airlines. Our recent data shows that you can find tickets from as low as $212 on this airline. An additional option worth looking into is Hawaiian Airlines, starting at $245. Users have found that Alaska Airlines is 56% cheaper than the other options available to this destination.
Can I find deals for flights from Santa Rosa to Denver that include hotel bookings?
Yes. In addition to deals on Santa Rosa to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Santa Rosa to Denver?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Denver.
Can I find deals for business class flights from Santa Rosa to Denver?
Yes. Cheapflights offers flight deals from Santa Rosa to Denver 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 Denver?
Currently, October is the cheapest month in which you can book a flight from Santa Rosa to Denver (average of $197). Flying from Santa Rosa to Denver 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.

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Other flights to Denver

Top 2 airlines flying from Santa Rosa to Denver

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$300	Average$538	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$302	Average$500	FlexibilityNo cancel fee	On-time75%

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$106+ Cheap flights from Santa Rosa to Denver (STS - DEN)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Santa Rosa to Denver with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Santa Rosa Sonoma County to Denver Intl are usually found in February or January, booked 62 days in advance, depart on a Thursday or Tuesday and return on a Sunday

Cheap flight deals from Santa Rosa to Denver

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Santa Rosa to Denver

Cheapest flights from Santa Rosa to DenverExplore the most affordable flight options available from Santa Rosa to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.

Explore the most affordable flight options available from Santa Rosa to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Santa Rosa to Denver that are best for you.

Best time to book a flight from Santa Rosa to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Santa Rosa with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Santa Rosa to Denver

How far ahead should I book a flight from Santa Rosa to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Santa Rosa to Denver. Price data was last updated on August 8, 2025.

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

What is the cheapest time of day to fly from STS to DEN?

Find hourly flight availability from Santa Rosa to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 11, 2025.

How much does it cost to fly round-trip from Santa Rosa to Denver?

Reviews of airlines servicing Denver

Read through reviews of airlines operating flights from Santa Rosa to Denver, such as Alaska Airlines, Hawaiian Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines flying from Santa Rosa to Denver round-trip?

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

How can I find direct flights from Santa Rosa to Denver?

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

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

Traveling to a place near Denver?

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Alternative routes for Santa Rosa to Denver

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Top 2 airlines flying from Santa Rosa to Denver

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Cheapest flights from Santa Rosa to Denver
Explore the most affordable flight options available from Santa Rosa to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.