DEN - STS

$89 Find Cheap Flights from Denver to Santa Rosa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Santa Rosa departing on 4/1. 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 Santa Rosa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Santa Rosa, 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 Denver to Santa Rosa, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$177
Overall average: $389
Alaska Airlines
Sat 4/25Sat 5/2
DEN - STS • 1 stop
Cheapest one-way
$89
Typical prices: $344-$532
Alaska Airlines
Wed 4/1
DEN - STS • 1 stop
When to travel
December
Cheapest • 37% price drop
March
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 Denver to Santa Rosa 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 Santa Rosa!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Santa Rosa 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 Denver to Santa Rosa

Sat, Apr 25 - Sat, May 2
Alaska Airlines Logo
1:02 pm - 7:06 pm
DEN
-
STS
7h 04m
1 stop
Alaska Airlines Logo
7:23 am - 6:25 pm
STS
-
DEN
10h 02m
1 stop
$177Alaska Airlines
Fri, May 1 - Mon, May 4
Alaska Airlines Logo
7:06 pm - 11:27 pm
DEN
-
STS
5h 21m
1 stop
Alaska Airlines Logo
7:23 am - 6:25 pm
STS
-
DEN
10h 02m
1 stop
$197Alaska Airlines
Tue, Mar 3 - Tue, Mar 10
Alaska Airlines Logo
7:00 am - 9:52 pm
DEN
-
STS
15h 52m
1 stop
Alaska Airlines Logo
6:50 pm - 10:42 am
STS
-
DEN
14h 52m
1 stop
$217Alaska Airlines
Tue, Mar 3 - Tue, Mar 10
Alaska Airlines Logo
7:40 am - 7:17 pm
DEN
-
STS
12h 37m
2 stops
Alaska Airlines Logo
6:50 pm - 10:42 am
STS
-
DEN
14h 52m
1 stop
$230Alaska Airlines
Sat, Apr 25 - Sat, May 2
Alaska Airlines Logo
11:46 am - 10:57 pm
DEN
-
STS
12h 11m
2 stops
Alaska Airlines Logo
7:23 am - 6:25 pm
STS
-
DEN
10h 02m
1 stop
$235Alaska Airlines
Fri, May 1 - Mon, May 4
Alaska Airlines Logo
7:06 pm - 11:27 pm
DEN
-
STS
5h 21m
1 stop
Alaska Airlines Logo
7:00 am - 10:50 am
STS
-
DEN
26h 50m
2 stops
$245Alaska Airlines
Sat, Apr 25 - Sat, May 2
Alaska Airlines Logo
6:45 am - 7:06 pm
DEN
-
STS
13h 21m
1 stop
Alaska Airlines Logo
7:23 am - 6:25 pm
STS
-
DEN
10h 02m
1 stop
$248Alaska Airlines
Wed, Mar 4 - Wed, Mar 11
Alaska Airlines Logo
11:38 am - 4:47 pm
DEN
-
STS
6h 09m
1 stop
Alaska Airlines Logo
10:51 am - 11:38 am
STS
-
DEN
23h 47m
1 stop
$250Alaska Airlines
Thu, Apr 23 - Sat, Apr 25
Alaska Airlines Logo
7:06 pm - 11:27 pm
DEN
-
STS
5h 21m
1 stop
Alaska Airlines Logo
7:23 am - 12:06 pm
STS
-
DEN
27h 43m
1 stop
$263Alaska Airlines
Wed, Mar 4 - Wed, Mar 11
Alaska Airlines Logo
7:00 am - 9:52 pm
DEN
-
STS
15h 52m
1 stop
Alaska Airlines Logo
7:57 pm - 10:42 am
STS
-
DEN
13h 45m
2 stops
$265Alaska Airlines
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Santa Rosa, 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 Denver to Santa Rosa is December, where tickets cost $280 (return) on average. On the other hand, the most expensive months are June and October, where the average cost of round-trip tickets is $598 and $554 respectively.

Good to know

Low seasonNovember
Cheapest flight$89
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 33% lower on average.
Flight from Denver to Santa Rosa

When to book flights from Denver to Santa Rosa

Are your dates flexible? Find out the best times to travel from Denver to Santa Rosa 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 Denver to Santa Rosa

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

    In the last 3 days, the lowest price for a flight from Denver to Santa Rosa was $89 for a one-way ticket and $177 for a round-trip.

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

    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 Denver to Santa Rosa?

    We unfortunately don’t have that data for this specific route.

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

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

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

    The two airlines most popular with KAYAK users for flights from Denver to Santa Rosa are Alaska Airlines and American Airlines. With an average price for the route of $404 and an overall rating of 8.0, Alaska Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $584 and an overall rating of 7.2.

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

    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 Denver to Santa Rosa.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santa Rosa from Denver 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 Denver to Santa Rosa?

    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 Santa Rosa with an airline and back to Denver with another airline. Booking your flights between Denver and STS 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 Denver to Santa Rosa?

    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 Santa Rosa from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Denver to Santa Rosa?

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

Direct departures

Denver Intl to Santa Rosa Sonoma County

Saturday

Southwest

Southwest

See more direct flights

Direct returns

Santa Rosa Sonoma County to Denver Intl

Saturday

Southwest

Southwest

See more direct flights

Reviews of the top airlines flying from Denver to Santa Rosa

 
See real verified KAYAK customer reviews for airlines flying from Denver to Santa Rosa. 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 Denver to Santa Rosa? 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 11833 reviews
8.5Crew
7.0Entertainment
7.1Food
7.8Comfort
8.1Boarding
Airline reviews

Flight cancelled and deplaned. Rescheduled 8 hours later at a different airport. Ended up at destination but late.

6.0 GoodAnonymous, Feb 2026
DCA - SAN
Read more Alaska Airlines reviews

Flight cancelled and deplaned. Rescheduled 8 hours later at a different airport. Ended up at destination but late.

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

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.

Great. I did have a little issue getting into the Lounge, which is likely more an American Airlines issue. I did not carry my physical AAdvantage Executive credit card with me on this trip, which Admirals Club membership is a part of the benefits of having this card. The instructions on the AA website and the Citi cards website make it seem like you don't need the physical card, as both sites state you can enter with your boarding pass and driver's license. But both lounges said you were required to present the physical card (and not the digital version, via Apple Pay), as only the physical card says "Admirals Club" on the back.I also do not have a physical Admirals Club membership card, so while both lounges eventually let me in, both denied me entrance initially for this reason.

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

We left about 30 minutes late due to ramp issues. It did not impact me, but I know others on the flight had very tight connections to Maui.

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

The crew was very friendly. Boarding was quick and efficient.

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

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

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

Information on your arrival and departure airports