$84 Cheap Flights from Denver (DEN) to Santa Rosa (STS)

View $84 flight on Wed, Mar 4, 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Santa Rosa, CA (STS-Sonoma County)

Cheap Flights from Denver to Santa Rosa (DEN-STS)

Prices were available within the past 7 days and start at $84 for one-way flights and $192 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Feb 3 - Thu, Feb 5
DEN
Denver
STS
Santa Rosa
$192 Roundtrip, found 4 days ago
$192
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Feb 3 from Denver to Santa Rosa, returning Thu, Feb 5, priced at $192 found 4 days ago
Hawaiian Airlines
Wed, Feb 25 - Sat, Mar 7
DEN
Denver
STS
Santa Rosa
$201 Roundtrip, found 2 days ago
$201
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Feb 25 from Denver to Santa Rosa, returning Sat, Mar 7, priced at $201 found 2 days ago
Hawaiian Airlines
Wed, Jan 14 - Tue, Jan 27
DEN
Denver
STS
Santa Rosa
$204 Roundtrip, found 5 days ago
$204
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Wed, Jan 14 from Denver to Santa Rosa, returning Tue, Jan 27, priced at $204 found 5 days ago
Hawaiian Airlines
Wed, Feb 25 - Wed, Mar 11
DEN
Denver
STS
Santa Rosa
$205 Roundtrip, found 2 days ago
$205
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Feb 25 from Denver to Santa Rosa, returning Wed, Mar 11, priced at $205 found 2 days ago
Hawaiian Airlines
Wed, Jan 14 - Mon, Jan 26
DEN
Denver
STS
Santa Rosa
$213 Roundtrip, found 5 days ago
$213
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Wed, Jan 14 from Denver to Santa Rosa, returning Mon, Jan 26, priced at $213 found 5 days ago
American Airlines
Wed, Jan 7 - Sun, Jan 11
DEN
Denver
STS
Santa Rosa
$215 Roundtrip, found 2 days ago
$215
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Jan 7 from Denver to Santa Rosa, returning Sun, Jan 11, priced at $215 found 2 days ago
Hawaiian Airlines
Thu, Jan 29 - Wed, Feb 11
DEN
Denver
STS
Santa Rosa
$218 Roundtrip, found 3 days ago
$218
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Thu, Jan 29 from Denver to Santa Rosa, returning Wed, Feb 11, priced at $218 found 3 days ago
Hawaiian Airlines
Mon, Jan 26 - Sat, Jan 31
DEN
Denver
STS
Santa Rosa
$222 Roundtrip, found 3 days ago
$222
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Mon, Jan 26 from Denver to Santa Rosa, returning Sat, Jan 31, priced at $222 found 3 days ago
Hawaiian Airlines
Mon, Feb 23 - Sat, Mar 7
DEN
Denver
STS
Santa Rosa
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Mon, Feb 23 from Denver to Santa Rosa, returning Sat, Mar 7, priced at $225 found 2 days ago
Southwest Airlines
Thu, Apr 23 - Sat, Apr 25
DEN
Denver
STS
Santa Rosa
$380 Roundtrip, found 11 hours ago
$380
Roundtrip
found 11 hours ago
Select Southwest Airlines flight, departing Thu, Apr 23 from Denver to Santa Rosa, returning Sat, Apr 25, priced at $380 found 11 hours ago

Find the cheapest month to fly from Denver (DEN) to Santa Rosa (STS)

November is typically the cheapest month to fly

From $212 - $649 per traveler.

Alternative airports near Santa Rosa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sonoma County STS. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $479
STS
Sonoma County
CheapestClosest
Average driving time to city center10 min
Flights from $479
Flights from Denver (DEN) to Santa Rosa (STS)
Origin airport
Denver Intl.
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines, Southwest Airlines
Roundtrip price
$192
Distance
973 mi

Denver to Santa Rosa Flights

The cheapest times to fly from Denver to Santa Rosa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Santa Rosa are during the month of February. You can find some of the cheapest flights from Denver to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Santa Rosa

Sunday is one of the best days to book for cheap flights from Denver to Santa Rosa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Santa Rosa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Santa Rosa in 2026. You can also book with separate airlines for your outbound and return journeys, from $84 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Santa Rosa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Santa Rosa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Sonoma County Airport (STS) cost?
Secure a cheap one-way flight from $84 or cheap return flight from $192 from Denver Intl. Airport (DEN) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to Sonoma County Airport (STS)?
Planning your trip for February may help you find better deals, as it's the cheapest month for flights between DEN and STS. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Sonoma County Airport (STS)?
To find the cheapest airline that'll fly you from DEN to STS, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Denver Intl. Airport (DEN) to Sonoma County Airport (STS)?
There are no daily nonstop flights from Denver Intl. Airport (DEN) to Sonoma County Airport (STS). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from DEN to STS?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to Sonoma County Airport (STS)?
To avoid potential delays on the Denver Intl. Airport (DEN) to Sonoma County Airport (STS) route, aim to fly before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Santa Rosa from Denver Intl. Airport (DEN)?
Board a direct flight from Denver Intl. Airport (DEN) to Santa Rosa and touch down at San Francisco Intl. Airport (SFO). Another convenient gateway to this city is Oakland Intl. Airport (OAK).
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Sonoma County Airport (STS) last-minute?
Last-minute bookings from DEN to STS are usually more expensive. To secure the best rates, start looking for flights early. That said, if you can play around with your travel dates, it's possible to land a cheap fare right before your journey.
Is it cheaper to book a DEN to STS flight and hotel package?
Booking a DEN to STS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Sonoma County Airport (STS)?
In most instances, you can modify or cancel your DEN to STS flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need further details, head to our Customer Service portal.

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*Available to One Key members.