STS - DEN

$94 Find Cheap Flights from Santa Rosa to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Santa Rosa to Denver departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Santa Rosa to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Santa Rosa to Denver, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$173
Overall average: $406
Multiple Airlines
Sat 4/18Tue 4/21
STS - DEN • 1 stop
Cheapest non-stop
$358
Southwest
Sat 4/11Sat 4/18
STS - DEN • Non-stop
Top airlines
Alaska Airlines
Cheapest • from $177 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 27% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
1 day a week
There are direct flights from Santa Rosa to Denver 1 day a week: Sat.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Santa Rosa to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Santa Rosa to Denver

Sat, Apr 18 - Tue, Apr 21
Multiple Airlines Logo
9:50 am - 5:24 pm
STS
-
DEN
6h 34m
1 stop
Multiple Airlines Logo
6:20 pm - 11:13 pm
DEN
-
STS
5h 53m
1 stop
$173Multiple Airlines
Sat, Apr 18 - Tue, Apr 21
Alaska Airlines Logo
9:50 am - 5:24 pm
STS
-
DEN
6h 34m
1 stop
Alaska Airlines Logo
7:25 am - 7:05 pm
DEN
-
STS
12h 40m
1 stop
$177Alaska Airlines
Sat, Apr 11 - Sat, Apr 25
Alaska Airlines Logo
7:30 am - 6:28 pm
STS
-
DEN
9h 58m
1 stop
Alaska Airlines Logo
1:02 pm - 7:06 pm
DEN
-
STS
7h 04m
1 stop
$197Alaska Airlines
Tue, Mar 10 - Sat, Apr 18
Alaska Airlines Logo
8:00 am - 9:23 pm
STS
-
DEN
12h 23m
2 stops
Alaska Airlines Logo
1:16 pm - 7:20 pm
DEN
-
STS
7h 04m
1 stop
$202Alaska Airlines
Sat, Apr 18 - Mon, Apr 20
Alaska Airlines Logo
9:50 am - 5:24 pm
STS
-
DEN
6h 34m
1 stop
Alaska Airlines Logo
6:20 pm - 10:03 am
DEN
-
STS
16h 43m
1 stop
$205Alaska Airlines
Wed, May 6 - Wed, May 13
Alaska Airlines Logo
7:23 am - 6:25 pm
STS
-
DEN
10h 02m
1 stop
Alaska Airlines Logo
1:39 pm - 11:26 pm
DEN
-
STS
10h 47m
1 stop
$207Alaska Airlines
Tue, Apr 7 - Tue, Apr 14
Alaska Airlines Logo
7:46 pm - 12:20 pm
STS
-
DEN
15h 34m
1 stop
Alaska Airlines Logo
6:20 pm - 2:16 pm
DEN
-
STS
20h 56m
2 stops
$210Alaska Airlines
Sat, Apr 4 - Wed, Apr 8
Alaska Airlines Logo
7:00 am - 11:44 pm
STS
-
DEN
15h 44m
1 stop
Alaska Airlines Logo
7:25 am - 7:05 pm
DEN
-
STS
12h 40m
1 stop
$225Alaska Airlines
Sat, Apr 11 - Sat, Apr 18
Alaska Airlines Logo
7:30 am - 6:28 pm
STS
-
DEN
9h 58m
1 stop
Alaska Airlines Logo
1:16 pm - 7:20 pm
DEN
-
STS
7h 04m
1 stop
$227Alaska Airlines
Thu, Apr 16 - Mon, Apr 20
Alaska Airlines Logo
9:50 am - 11:44 pm
STS
-
DEN
12h 54m
1 stop
Alaska Airlines Logo
7:25 am - 10:03 am
DEN
-
STS
27h 38m
1 stop
$233Alaska Airlines
Booking Insights

KAYAK's insights & trends for Santa Rosa to Denver flights

Get data-powered insights and trends into flights from Santa Rosa to Denver to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Santa Rosa to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Santa Rosa to Denver is November, where tickets cost $338 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $773 and $573 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Santa Rosa to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Santa Rosa to Denver, you should book around 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$94
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Santa Rosa to Denver

When to book flights from Santa Rosa to Denver

Are your dates flexible? Find out the best times to travel from Santa Rosa to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Santa Rosa to Denver

  • What is the cheapest flight from Santa Rosa to Denver?

    In the last 3 days, the lowest price for a flight from Santa Rosa to Denver was $94 for a one-way ticket and $173 for a round-trip.

  • Do I need a passport to fly between Santa Rosa and Denver?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Santa Rosa to Denver?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Santa Rosa to Denver flight route.

  • Which airline alliances offer flights from Santa Rosa to Denver?

    oneworld is the only airline alliance operating flights between Santa Rosa and Denver.

  • Which is the best airline for flights from Santa Rosa to Denver, Alaska Airlines or Southwest?

    The two airlines most popular with KAYAK users for flights from Santa Rosa to Denver are Alaska Airlines and Southwest. With an average price for the route of $464 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $422 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Santa Rosa to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Santa Rosa to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Santa Rosa to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Santa Rosa is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Santa Rosa to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Santa Rosa with another airline. Booking your flights between Santa Rosa and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Santa Rosa to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Santa Rosa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Santa Rosa to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $389 or less round-trip.

Prefer to fly direct from Santa Rosa to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Santa Rosa Sonoma County to Denver Intl.
Find which airlines fly direct from Santa Rosa Sonoma County Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Santa Rosa Sonoma County to Denver Intl

Saturday

Southwest

Southwest

See more direct flights

Direct returns

Denver Intl to Santa Rosa Sonoma County

Saturday

Southwest

Southwest

See more direct flights

Reviews of the top 3 airlines serving from Santa Rosa to Denver

 
See real verified KAYAK customer reviews for airlines flying from Santa Rosa to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Santa Rosa to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11848 reviews
7.8Comfort
7.0Entertainment
8.1Boarding
8.5Crew
7.1Food
Airline reviews

The room for legs is adequate for a 6’ tall man and the flight was comfortable. The cabin is clean and the crew is very friendly and pleasant.

10.0 ExcellentPhilip, Feb 2026
SAN - TPA
Read more Alaska Airlines reviews

The room for legs is adequate for a 6’ tall man and the flight was comfortable. The cabin is clean and the crew is very friendly and pleasant.

The he whole flight was very smooth on every aspects.

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

I paid for wifi and it never worked... it was miserable. I couldn't access my shared files to work on the plane, it didn't work on my phone. I paid for nothing but frustration and continual refreshing, hoping it would work

The stewardess are very nice and pleasant, Someone onboard had a medical attention, and they attended that person non-stop all throughout the flight, and yet, did not forget to serve and help other passengers.

Worst first/business class I have ever flown after 75 years on planes. Barely acceptable seats, terrible food, uninterested attendants, unavailable WiFi. I’ll never fly this airline again.

The bathroom trash container under the sink fell out and was like that long before my flight. The plane smelled of canned fish and floor was Deteriorating

My TSA pre check was left Off my boarding pass which was a large inconvenience.

Again, very smooth and all of the Alaska folks were great. They continue to meet all my needs.

Overall it was fine, however one of my two checked bags did not arrive and I was told it was left in Palm Springs. I don't understand how one of the two bags made it through fine but the other got lost .

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

It would be nice to have some low carb options in the snacks.

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

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

Information on your arrival and departure airports