DEN - STS

$132 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 1/30. 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
$263
Overall average: $470
Alaska Airlines
Thu 2/26Sat 2/28
DEN - STS • 1 stop
Cheapest non-stop
$389
Southwest
Sat 4/11Sat 4/18
DEN - STS • Non-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
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

Thu, Feb 26 - Sat, Feb 28
Alaska Airlines Logo
7:52 pm - 11:50 pm
DEN
-
STS
28h 58m1 stop
Alaska Airlines Logo
7:57 pm - 11:59 pm
STS
-
DEN
27h 02m1 stop
$263Alaska Airlines
Thu, Feb 26 - Sat, Feb 28
Alaska Airlines Logo
7:52 pm - 11:50 pm
DEN
-
STS
28h 58m1 stop
Alaska Airlines Logo
8:00 am - 11:59 pm
STS
-
DEN
14h 59m2 stops
$268Alaska Airlines
Sat, Apr 11 - Sat, Apr 18
Alaska Airlines Logo
1:16 pm - 7:20 pm
DEN
-
STS
7h 04m1 stop
Alaska Airlines Logo
7:00 am - 5:24 pm
STS
-
DEN
9h 24m1 stop
$273Alaska Airlines
Sat, Jan 24 - Mon, Jan 26
Alaska Airlines Logo
5:09 pm - 10:35 am
DEN
-
STS
18h 26m1 stop
Alaska Airlines Logo
6:52 pm - 11:38 am
STS
-
DEN
15h 46m1 stop
$281Alaska Airlines
Sat, Jan 24 - Mon, Jan 26
Alaska Airlines Logo
5:09 pm - 10:58 pm
DEN
-
STS
30h 49m2 stops
Alaska Airlines Logo
6:30 pm - 11:35 pm
STS
-
DEN
28h 05m2 stops
$284Alaska Airlines
Thu, May 7 - Sun, May 10
Alaska Airlines Logo
7:00 am - 11:26 pm
DEN
-
STS
17h 26m1 stop
Alaska Airlines Logo
7:00 am - 12:06 pm
STS
-
DEN
28h 06m1 stop
$288Alaska Airlines
Sun, Feb 15 - Thu, Feb 19
Alaska Airlines Logo
7:00 am - 11:50 pm
DEN
-
STS
17h 50m1 stop
Alaska Airlines Logo
7:15 am - 11:59 pm
STS
-
DEN
15h 44m2 stops
$293Alaska Airlines
Fri, Feb 27 - Sun, Mar 1
Alaska Airlines Logo
7:52 pm - 9:52 pm
DEN
-
STS
27h 00m1 stop
Alaska Airlines Logo
8:00 am - 10:42 am
STS
-
DEN
25h 42m1 stop
$308Alaska Airlines
Thu, Feb 26 - Sat, Feb 28
Alaska Airlines Logo
7:40 am - 11:50 pm
DEN
-
STS
17h 10m2 stops
Alaska Airlines Logo
8:00 am - 11:59 pm
STS
-
DEN
14h 59m2 stops
$313Alaska Airlines
Thu, Feb 19 - Wed, Feb 25
Alaska Airlines Logo
7:00 am - 11:51 pm
DEN
-
STS
17h 51m2 stops
Alaska Airlines Logo
7:15 am - 9:23 pm
STS
-
DEN
13h 08m2 stops
$318Alaska 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 seasonFebruary
Cheapest flight$132
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 31% 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 $132 for a one-way ticket and $263 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 $480 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 $558 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.

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 11633 reviews
8.1Boarding
7.8Comfort
7.0Entertainment
7.1Food
8.5Crew
Airline reviews

Before I even boarded this old white man , a fat Samoan lady, and a short brown guy were at the desk. They asked if we could have 15 volunteers to get free checked bags cause it was a full flight. I waited in line, I got up to the short brown guy and he asked for my boarding pass and I showed him, he said that he can’t check my bag because I wasn’t given a seat yet. So he had me go to the next line with the old white guy, but before I switched lines I asked him, well if I go to that line, will I be able to check my bag so I waited in line and he said yeah, it doesn’t matter , I’m good. So I switch lines and wait in the line of the old white man, with every guest before me he was very sweet , making small talk, smiling and had great eye contact( all of the people he was talking to was white) I come up and he doesn’t look at me , then says I’ll be right with you, I wait for him to initiate and when he does he’s like what’s up? I was like the man next to you told me I needed to get checked in before I can check my bag. He’s like what’s your last name and I say Valenzuela , and he said we’re not there yet, all while not smiling, no eye contact like he was with the other guests. He said we’re will call you when I get to you. So I go sit down and I’m sitting down for less than a minute and he calls me and someone else. I go up and say Valenzuela and he’s like who are you and I’m like Valenzuela , he’s like hmm and says don’t go anywhere and calls someone else. I finally get my seat and I go back to the short brown man and ask if I can check my bag and he said there isn’t any room available and I was like? Wait you told me and then the fat Samoan lady said yeah we don’t need anymore bags thank you. I was dumbfounded and just walked away. So rude. Terrible experience and terrible communication on their end.

2.0 MediocreAnonymous, Jan 2026
PDX - BUR
Read more Alaska Airlines reviews

Before I even boarded this old white man , a fat Samoan lady, and a short brown guy were at the desk. They asked if we could have 15 volunteers to get free checked bags cause it was a full flight. I waited in line, I got up to the short brown guy and he asked for my boarding pass and I showed him, he said that he can’t check my bag because I wasn’t given a seat yet. So he had me go to the next line with the old white guy, but before I switched lines I asked him, well if I go to that line, will I be able to check my bag so I waited in line and he said yeah, it doesn’t matter , I’m good. So I switch lines and wait in the line of the old white man, with every guest before me he was very sweet , making small talk, smiling and had great eye contact( all of the people he was talking to was white) I come up and he doesn’t look at me , then says I’ll be right with you, I wait for him to initiate and when he does he’s like what’s up? I was like the man next to you told me I needed to get checked in before I can check my bag. He’s like what’s your last name and I say Valenzuela , and he said we’re not there yet, all while not smiling, no eye contact like he was with the other guests. He said we’re will call you when I get to you. So I go sit down and I’m sitting down for less than a minute and he calls me and someone else. I go up and say Valenzuela and he’s like who are you and I’m like Valenzuela , he’s like hmm and says don’t go anywhere and calls someone else. I finally get my seat and I go back to the short brown man and ask if I can check my bag and he said there isn’t any room available and I was like? Wait you told me and then the fat Samoan lady said yeah we don’t need anymore bags thank you. I was dumbfounded and just walked away. So rude. Terrible experience and terrible communication on their end.

Our late returning flight was annoying. The plane was small, but it made boarding and disembarking quicker. I do wish they offered a gluten free snack.

The seats are very small. I’m 5’ 3”, so don’t think I should notice. The food selection was non existent and very disappointing. 5 hour flight plus TSA, etc. I would have appreciated a small salad, crudités. Something fresher not just chips.

The flight was delayed, but once it arrived everything moved right along.

They canceled my flight with only a couple hours before checking in at the airport and offered no alternatives to get home.

The ticket I purchased through Kayak did not show up in my Alaska Airlines app, and neither of the codes given to me worked for online check in. I've never had to show up to the airport at 6am wondering if I've been scammed. Cheap flight fare or whatever does not play well with airlines and I will be wary of using Kayak in the future.

Was notified the departure would be late. Later on it was suddenly on time. Traffic by LAX was horrendous, and I missed the flight.

you sent me to some shitty "Airfaireassist" thing that did a bait and switch on the faire. Won't be using Kayak ever again

Great airline. Sat next to a really big person tho

Did not like that every price option offered, even the more expensive one, required I pay for my seat. My seat was changed without my consent My TSA did not show in Boarding Pass

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

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

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

Information on your arrival and departure airports