DEN - STS

$129 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 5/19. 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
$247
Typical prices: $498-$404
Alaska Airlines
mar. 8/11mer. 8/12
DEN - STS • 1 stop
Cheapest non-stop
$315
Southwest
sam. 5/16sam. 5/23
DEN - STS • Non-stop
Nonstop flights
1 day a week
Sat
You can fly direct with Southwest. Average duration is 2h 35m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $247 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $387 (round-trip)
Shortest trip • 5h 21m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 37% price drop
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

mar., août 11 - mer., août 12
Alaska Airlines Logo
6:00 am - 10:24 am
DEN
-
STS
5h 24m
1 stop
Alaska Airlines Logo
5:56 pm - 10:33 am
STS
-
DEN
15h 37m
1 stop
$247Alaska Airlines
mar., août 11 - mer., août 12
Southwest Logo
6:20 am - 11:20 am
DEN
-
STS
6h 00m
1 stop
Southwest Logo
6:00 am - 3:10 pm
STS
-
DEN
8h 10m
2 stops
$253Southwest
mar., août 11 - mer., août 12
Southwest Logo
1:45 pm - 9:25 pm
DEN
-
STS
8h 40m
2 stops
Southwest Logo
6:00 am - 3:10 pm
STS
-
DEN
8h 10m
2 stops
$258Southwest
mar., août 11 - sam., août 15
Alaska Airlines Logo
6:00 am - 10:24 am
DEN
-
STS
5h 24m
1 stop
Alaska Airlines Logo
6:26 am - 11:30 pm
STS
-
DEN
16h 04m
1 stop
$261Alaska Airlines
mar., mai 19 - mar., mai 26
Alaska Airlines Logo
6:40 am - 11:25 am
DEN
-
STS
5h 45m
1 stop
Alaska Airlines Logo
7:40 pm - 11:49 pm
STS
-
DEN
27h 09m
1 stop
$266Alaska Airlines
mer., sept. 9 - lun., sept. 14
American Airlines Logo
8:27 am - 3:47 pm
DEN
-
STS
8h 20m
1 stop
American Airlines Logo
4:21 pm - 11:05 pm
STS
-
DEN
5h 44m
1 stop
$272American Airlines
sam., mai 16 - sam., mai 23
Alaska Airlines Logo
6:40 am - 11:28 pm
DEN
-
STS
17h 48m
1 stop
Alaska Airlines Logo
10:51 am - 11:37 pm
STS
-
DEN
11h 46m
1 stop
$274Alaska Airlines
ven., juin 5 - mar., juin 9
Alaska Airlines Logo
2:19 pm - 11:25 am
DEN
-
STS
22h 06m
1 stop
Alaska Airlines Logo
7:01 am - 11:59 pm
STS
-
DEN
15h 58m
1 stop
$275Alaska Airlines
mer., sept. 9 - lun., sept. 14
Southwest Logo
2:50 pm - 9:25 pm
DEN
-
STS
7h 35m
2 stops
Southwest Logo
10:55 am - 8:05 pm
STS
-
DEN
8h 10m
1 stop
$283Southwest
sam., mai 16 - sam., mai 23
Alaska Airlines Logo
6:40 am - 2:13 pm
DEN
-
STS
8h 33m
1 stop
Alaska Airlines Logo
7:40 pm - 1:39 pm
STS
-
DEN
16h 59m
1 stop
$286Alaska 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.

How much is a round-trip flight from Denver to Santa Rosa?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Santa Rosa departing in August.

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 March, 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 seasonMarch
Cheapest flight$129
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 7% increase in price.
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 $129 for a one-way ticket and $247 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.

  • On which days can I fly direct from Denver to Santa Rosa?

    You can catch a nonstop flight from Denver to Santa Rosa on on Saturday.

  • 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 $390 and an overall rating of 7.9, Alaska Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $589 and an overall rating of 7.1.

  • 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.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $189 or less one-way.

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.
7.9
Alaska AirlinesOverall score based on 12275 reviews
7.0Food
8.1Boarding
8.5Crew
7.8Comfort
7.0Entertainment
Airline reviews

See what I wrote in the previous section. This was a terrible experience. I would like refund.. I even paid an extra $70 for an aisle seat closer to the front to ensure that I got off early enough to catch the next flight. The fact that the plane did not wait, and even left eearlier, knowing that the first flight came in late, and was moved to a terminal three train stops away is appalling. My friend that flew JetBlue, their flight was delayed and came in later and the connecting flight WAITED for them. How is it that JetBlue could do that, and Alaska could not.

2.0 MediocreAnna, Apr 2026
SEA - LAX
Read more Alaska Airlines reviews

See what I wrote in the previous section. This was a terrible experience. I would like refund.. I even paid an extra $70 for an aisle seat closer to the front to ensure that I got off early enough to catch the next flight. The fact that the plane did not wait, and even left eearlier, knowing that the first flight came in late, and was moved to a terminal three train stops away is appalling. My friend that flew JetBlue, their flight was delayed and came in later and the connecting flight WAITED for them. How is it that JetBlue could do that, and Alaska could not.

The seat on the plane out was broken and would not lean back. I have back problems and sitting up straight was hard on my lower back and caused pain for over half the flight. Since I paid extra for First Class so I would not have these issues. This needs to be addressed.

No headphones provided. No gf food. Only 1 beverage cart run sAN to HNL. Rarely saw crew members

The check-in crew for Alaska was rude, unhelpful, and the opposite of customer-centric. We arrived 50 minutes before our flight and were told it was too late to check baggage. When I asked what the cutoff was, the agent started speaking in codes “D50” and yelling to their manager who also spoke in codes. They then tried to speak to me using these codes and all I wanted to know was the time of the cutoff, which they would not — or could not — articulate. They booked me and my family on the next flight while smirking.

Generally Good. Outbound flight was marred by a continuously s creaming baby. Fortunately the flight was only 90 mins long it would be nice if people traveling with small childres could be centered in one part of the plane. Also, you need to adapt your servey to include a "not applicable " option for things like food and entertainment, which are not offered on shorter flights. I fily Alaska by choice as given all the cirumstances, I fel\el you do a good job.

A solidly good experience, but would’ve appreciated more communication with regards to travel delays.

I wasn’t aware that we needed to supply our own screens for entertainment

Alaska Airlines staff go out of their way to accommodate my fragile musical instrument, every time. They are unlike any other airline. I've experienced this can-do attitude on several flights with different staff, so this must be the culture of their company. I appreciate Alaska!

No issues and clear sailing. What a preferred to have sat in one of empty seats other than my assigned seat that would be my only complaint if it was to complain.

Perpetually delayed, flight out was delayed almost 2 hours, flight home was delayed an hour and a half. On the way back no refreshments as an option, yet they gave it out to 1st class. No apology or notice of the delay going out both ways. Seats are nice feature wise, but the adjustable headrests don't stay up anymore. Feels more like a budget airline

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

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

Information on your arrival and departure airports