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 $405 on this airline. An additional option worth looking into is American Airlines, starting at $423. Users have found that Alaska Airlines is 12% cheaper than the other options available to this destination.

Can I find flights from Santa Rosa to Denver for under $500 on Cheapflights?

Yes, there are multiple flights from Santa Rosa to Denver for under $500. The cheapest flight booked recently is on Alaska Airlines for just $405, but on average you can expect to pay $497.

Are there last-minute flights available from Santa Rosa to Denver for under $800?

There are currently 3+ open flights from Santa Rosa to Denver within the next 7 days for less than $800.

Which airlines flying from Santa Rosa Sonoma County to Denver Intl have flexible cancellations due to COVID-19?

Some of our airline partners flying from Santa Rosa Sonoma County to Denver Intl have new flexible policies in place due to COVID-19. American Airlines and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

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

Wednesday 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.

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

January is one of the best times of the year to fly to Denver from Santa Rosa. Prices for January average $238 per person but you can even find prices for as low as $79. The most expensive prices can be found in the month of June. Opting for a January flight can save you 34% on your journey compared to booking in June

When is the cheapest time to fly from Santa Rosa to Denver (STS - 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 at noon tend to be the most expensive. A flight in the morning could potentially save you up to 54% on airfare.

What does STS to DEN mean?

This is defined as Santa Rosa Sonoma County Airport (STS) and Denver Intl Airport (DEN). Codes like Denver Intl Airport are often used to just call airports uniquely.

Flights from Santa Rosa, CA to Denver, CO from $233

How to find the cheapest flight from Santa Rosa (STS) to Denver (DEN)

Popular in	December
Cheapest in	March
Average price	$485
Round-trip from	$197

High demand for flights, 43% potential price rise

Search Deals

Best time to find cheap flights, 33% potential price drop

Search Deals

Average for round-trip flights in June 2023

Search Deals

From Santa Rosa Sonoma County to Denver Intl

Search Deals

STS - DEN Price	$197 - $401
DEN Temperature	30.2 - 73.4 °F
DEN Rainfall	0.5 - 2.3 inches

STS - DEN

Price

$197 - $401

DEN

Temperature

30.2 - 73.4 °F

DEN

Rainfall

0.5 - 2.3 inches

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 47 days in advance, which can save you up to 27% on flights from Santa Rosa to Denver compared to booking the week you need them. Waiting 47 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 $238. For sooner than that we have options available in the next 3 days from $291.

Cheap flights from Santa Rosa to Denver in June, July 2023

These are some of the most attractive deals on flights from Santa Rosa to Denver in 2023. Check back in a little while for more flight options.

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

7h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

28h 58m

$405

Alaska Airlines

Deal found 5/31

Jul 4 - Jul 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

21h 51m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

19h 55m

$423

American Airlines

Deal found 5/31

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

14h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

28h 58m

$434

Alaska Airlines

Deal found 5/31

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

14h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

29h 25m

$463

Alaska Airlines

Deal found 5/31

Jun 13 - Jun 24

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

13h 27m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

16h 40m

$475

Multiple Airlines

Deal found 5/31

Jul 4 - Jul 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

7h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

13h 30m

$480

Alaska Airlines

Deal found 5/31

Jun 13 - Jun 24

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

13h 27m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

9h 08m

$495

Multiple Airlines

Deal found 5/31

Jun 13 - Jun 24

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

18h 22m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

45h 22m

$511

Multiple Airlines

Deal found 5/31

Jun 13 - Jun 24

STS

Santa Rosa Sonoma County

DEN

Denver Intl

3 stops

24h 57m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

16h 40m

$545

Multiple Airlines

Deal found 5/31

Santa Rosa to Denver 2023 flight deals

These are some of the most attractive deals on flights from Santa Rosa to Denver in 2023. Check back in a little while for more flight options.

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

7h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

28h 58m

$405

Alaska Airlines

Deal found 5/31

Jul 4 - Jul 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

21h 51m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

19h 55m

$423

American Airlines

Deal found 5/31

Aug 9 - Aug 12

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

21h 32m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

19h 48m

$431

American Airlines

Deal found 5/31

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

14h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

28h 58m

$434

Alaska Airlines

Deal found 5/31

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

14h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

29h 25m

$463

Alaska Airlines

Deal found 5/31

Jun 13 - Jun 24

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

13h 27m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

16h 40m

$475

Multiple Airlines

Deal found 5/31

Sep 8 - Sep 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

6h 27m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

7h 13m

$479

American Airlines

Deal found 5/31

Jul 4 - Jul 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

7h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

13h 30m

$480

Alaska Airlines

Deal found 5/31

Aug 8 - Aug 10

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

4h 37m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

8h 15m

$484

American Airlines

Deal found 5/30

Cheap American Airlines flights from Santa Rosa to Denver

Find some of the cheapest American Airlines flights traveling from Santa Rosa to Denver. Deals update often to give you more flight options matching your criteria

Jul 4 - Jul 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

21h 51m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

19h 55m

$423

American Airlines

Deal found 5/31

Aug 9 - Aug 12

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

21h 32m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

19h 48m

$431

American Airlines

Deal found 5/31

Sep 8 - Sep 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

6h 27m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

7h 13m

$479

American Airlines

Deal found 5/31

Aug 8 - Aug 10

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

4h 37m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

8h 15m

$484

American Airlines

Deal found 5/30

Jun 20 - Jun 26

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

21h 50m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

7h 42m

$579

American Airlines

Deal found 5/31

Jun 28 - Jul 3

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

18h 57m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

7h 42m

$604

American Airlines

Deal found 5/30

Jun 30 - Jul 7

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

31h 47m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

19h 55m

$607

American Airlines

Deal found 5/31

Jun 26 - Jun 29

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

21h 50m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

19h 25m

$699

American Airlines

Deal found 5/31

Jun 30 - Jul 7

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

4h 30m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

19h 55m

$721

American Airlines

Deal found 5/31

Cheap Alaska Airlines flights from Santa Rosa to Denver

Some of the lowest-priced Alaska Airlines flights we've found at this time heading from Santa Rosa to Denver. Check back soon if you're not seeing flights that suit your needs.

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

7h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

28h 58m

$405

Alaska Airlines

Deal found 5/31

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

14h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

28h 58m

$434

Alaska Airlines

Deal found 5/31

Jul 11 - Jul 25

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

14h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

29h 25m

$463

Alaska Airlines

Deal found 5/31

Jul 4 - Jul 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

7h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

13h 30m

$480

Alaska Airlines

Deal found 5/31

Aug 8 - Aug 10

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

14h 59m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

13h 23m

$489

Alaska Airlines

Deal found 5/30

Sep 8 - Sep 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

18h 52m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

16h 21m

$499

Alaska Airlines

Deal found 5/31

Nov 9 - Nov 12

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

7h 55m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

6h 44m

$510

Alaska Airlines

Deal found 5/31

Aug 8 - Aug 10

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

25h 01m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

23h 00m

$518

Alaska Airlines

Deal found 5/30

Nov 9 - Nov 12

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

17h 34m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

23h 18m

$549

Alaska Airlines

Deal found 5/31

Last minute flights from Santa Rosa to Denver

Have a look at some of the last-minute flights available departing from Santa Rosa to Denver. To prevent any unwanted surprises, users should verify their flight info before booking.

Jun 6 - Jun 7

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

8h 39m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

22h 54m

$792

Alaska Airlines

Deal found 5/31

Jun 6 - Jun 7

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

5h 57m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

1 stop

9h 09m

$942

Alaska Airlines

Deal found 5/31

Jun 6 - Jun 7

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

9h 24m

DEN

Denver Intl

STS

Santa Rosa Sonoma County

2 stops

22h 54m

$1,052

Alaska Airlines

Deal found 5/31

One-way flights to Denver from Santa Rosa

Users in need of a one-way flight from Santa Rosa to Denver can choose from these deals. Users needing a return flight from Santa Rosa to Denver should utilize the search form above.

Jul 17

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

7h 59m

$233

Alaska Airlines

Deal found 5/30

Jul 17

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

23h 36m

$278

Alaska Airlines

Deal found 5/30

Jun 8

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

19h 32m

$366

Multiple Airlines

Deal found 5/31

Jun 14

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

4h 30m

$390

American Airlines

Deal found 5/31

Jun 8

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

31h 47m

$409

American Airlines

Deal found 5/31

Jun 11

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

19h 32m

$444

Multiple Airlines

Deal found 5/31

Jun 7

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

4h 30m

$510

American Airlines

Deal found 5/31

Jun 7

STS

Santa Rosa Sonoma County

DEN

Denver Intl

2 stops

23h 27m

$533

Alaska Airlines

Deal found 5/31

Jun 27

STS

Santa Rosa Sonoma County

DEN

Denver Intl

1 stop

15h 17m

$558

Alaska Airlines

Deal found 6/1

Find flights from Santa Rosa to Denver within your budget

Fly from

Fly to

Budget

$405 - $511

Route

Depart

Return

Price

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 7/11

1 stop7h 59m

Denver Intl

Tue 7/25

1 stop28h 58m

$405

Pick Dates

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 7/4

1 stop21h 51m

Denver Intl

Tue 7/11

1 stop19h 55m

$423

Pick Dates

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Wed 8/9

1 stop21h 32m

Denver Intl

Sat 8/12

1 stop19h 48m

$431

Pick Dates

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 7/11

2 stops14h 59m

Denver Intl

Tue 7/25

1 stop28h 58m

$434

Pick Dates

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 7/11

2 stops14h 59m

Denver Intl

Tue 7/25

2 stops29h 25m

$463

Pick Dates

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 6/13

1 stop13h 27m

Denver Intl

Sat 6/24

2 stops16h 40m

$475

Pick Dates

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Fri 9/8

1 stop6h 27m

Denver Intl

Mon 9/11

1 stop7h 13m

$479

Pick Dates

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 6/13

1 stop13h 27m

Denver Intl

Sat 6/24

1 stop9h 08m

$495

Pick Dates

Santa Rosa Sonoma CountyDenver Intl

STS - DEN

STSDEN

Santa Rosa Sonoma County

Tue 6/13

2 stops18h 22m

Denver Intl

Sat 6/24

2 stops45h 22m

$511

Pick Dates

Flights are sorted by cheapest first

Deals found on 5/31

Reviews of Airlines Servicing Denver

Read through reviews of airlines operating flights from Santa Rosa to Denver, such as American Airlines and Alaska Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

This plane was so well equipped, comfortable and the customer service from check in thru in flight service was superior to any airline we’ve ever flown with and we’re old. We will now fly Alaskan Airlines For every trip where it’s available! Thank you thank you thank you for such great service

Alaska Airlines

8.0

Very good

1,375 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

This plane was so well equipped, comfortable and the customer service from check in thru in flight service was superior to any airline we’ve ever flown with and we’re old. We will now fly Alaskan Airlines For every trip where it’s available! Thank you thank you thank you for such great service

American Airlines

7.3

Good

2,149 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

This plane was so well equipped, comfortable and the customer service from check in thru in flight service was superior to any airline we’ve ever flown with and we’re old. We will now fly Alaskan Airlines For every trip where it’s available! Thank you thank you thank you for such great service

Related info for your journey

Alternative routes for Santa Rosa to Denver

Burbank to Colorado Springsfrom $47 pp

Los Angeles to Grand Junctionfrom $74 pp

Ontario to Denverfrom $89 pp

Santa Ana to Denverfrom $103 pp

San Diego to Denverfrom $108 pp

San Francisco to Denverfrom $139 pp

Top 2 airlines flying from Santa Rosa to Denver

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
United Airlines	Cheapest$237	Average$468	FlexibilityNo cancel fee	On-time69%	COVID-19 safety	Search United Airlines flights
American Airlines	Cheapest$338	Average$505	FlexibilityNo cancel fee	On-time71%	COVID-19 safety	Search American Airlines flights

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Cheap flights from Santa Rosa to Denver (STS - DEN) from $233

This is the cheapest one-way flight price, found on 5/30. Prices may vary by date and flight preferences.

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Book with Flexibility

Travel Smart

The best prices from Santa Rosa Sonoma County to Denver Intl are usually found in March or September, booked 50 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

How to find the cheapest flight from Santa Rosa (STS) to Denver (DEN)

All the information you need to plan the best STS to DEN flight in 2023: compare Santa Rosa to Denver flight prices with the expected peak season, weather and rainfall in Denver.

Popular in

Cheapest in

Average price

Round-trip from

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

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

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

When is the cheapest time to fly from Santa Rosa to Denver (STS - DEN)?

Cheap flights from Santa Rosa to Denver in June, July 2023

The best prices found for STS to DEN flights for June, July

These are some of the most attractive deals on flights from Santa Rosa to Denver in 2023. Check back in a little while for more flight options.

Santa Rosa to Denver 2023 flight deals

Cheap flights to Denver from Santa Rosa found for this year

These are some of the most attractive deals on flights from Santa Rosa to Denver in 2023. Check back in a little while for more flight options.

Cheap American Airlines flights from Santa Rosa to Denver

Find some of the cheapest American Airlines flights traveling from Santa Rosa to Denver. Deals update often to give you more flight options matching your criteria

Cheap Alaska Airlines flights from Santa Rosa to Denver

Some of the lowest-priced Alaska Airlines flights we've found at this time heading from Santa Rosa to Denver. Check back soon if you're not seeing flights that suit your needs.

Last minute flights from Santa Rosa to Denver

Late deals on return flights to Denver from Santa Rosa, departing today and this week

Have a look at some of the last-minute flights available departing from Santa Rosa to Denver. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Denver from Santa Rosa

The cheapest one-way flights from Santa Rosa to Denver

Users in need of a one-way flight from Santa Rosa to Denver can choose from these deals. Users needing a return flight from Santa Rosa to Denver should utilize the search form above.

Find flights from Santa Rosa to Denver within your budget

Use the slider to find flights from Santa Rosa to Denver that fit your budget.

Reviews of Airlines Servicing Denver

Read through reviews of airlines operating flights from Santa Rosa to Denver, such as American Airlines and Alaska Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Useful info, stats and facts about Santa Rosa to Denver flights.

Which airlines flying from Santa Rosa Sonoma County to Denver Intl have flexible cancellations due to COVID-19?

Can I find flights from Santa Rosa to Denver for under $500 on Cheapflights?

Are there last-minute flights available from Santa Rosa to Denver for under $800?

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

What does STS to DEN mean?

Other flights from Santa Rosa

Other flights to Denver

Flights to Denver from Santa Rosa

Rent a Car

Alternative routes for Santa Rosa to Denver

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Santa Rosa to Denver

The chart below displays the airlines Cheapflights users traveling from Santa Rosa to Denver choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2023