DEN - STS

$80 Find Cheap Flights from Denver to Santa Rosa - Compare and Save

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 9/1. 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

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Everything you should know

Cheapest round-trip
$159
Typical prices: $358-$509
American Airlines
Tue 9/1Tue 9/8
DEN - STS • 1 stop
Cheapest non-stop
$233
Southwest
Sat 10/24Sat 10/24
DEN - STS • Non-stop
Nonstop flights
5 days a week
Mon, Thu, Fri, Sat, Sun
You can fly direct with Southwest. Average duration is 2h 38m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $159 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $279 (round-trip)
Shortest trip • 4h 43m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 37% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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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

Tue, Sep 1 - Tue, Sep 8
American Airlines Logo
8:29 am - 3:37 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
8h 08m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
12:58 pm - 9:42 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
7h 44m1 stop Phoenix Sky Harbor Intl
$159American Airlines
Thu, Oct 1 - Sat, Oct 3
Southwest Logo
8:30 am - 2:35 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
7h 05m1 stop Burbank Bob Hope
Southwest Logo
3:05 pm - 9:40 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
5h 35m1 stop Las Vegas Harry Reid Intl
$159Southwest
Tue, Sep 15 - Thu, Sep 24
Southwest Logo
9:05 am - 12:45 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
4h 40m1 stop Burbank Bob Hope
Southwest Logo
10:55 am - 5:00 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
5h 05m1 stop Burbank Bob Hope
$159Southwest
Sat, Oct 24 - Sat, Oct 24
Southwest Logo
6:40 am - 1:25 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
7h 45m1 stop Austin Bergstrom
Southwest Logo
3:05 pm - 9:40 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
5h 35m1 stop Las Vegas Harry Reid Intl
$159Southwest
Sat, Sep 19 - Wed, Sep 23
Alaska Airlines Logo
11:50 am - 4:16 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
5h 26m1 stop Portland
Alaska Airlines Logo
6:13 am - 12:20 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
5h 07m1 stop San Diego
$187Alaska Airlines
Tue, Nov 10 - Wed, Nov 11
Alaska Airlines Logo
2:55 pm - 7:15 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
5h 20m1 stop Portland
Alaska Airlines Logo
8:12 am - 2:15 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
5h 03m1 stop Portland
$187Alaska Airlines
Tue, Oct 6 - Wed, Oct 7
Delta Logo
10:45 am - 4:05 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
6h 20m1 stop Salt Lake City
Delta Logo
4:50 pm - 10:40 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
4h 50m1 stop Salt Lake City
$197Delta
Thu, Nov 5 - Tue, Nov 10
Delta Logo
10:45 am - 4:05 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
6h 20m1 stop Salt Lake City
Delta Logo
4:47 pm - 11:00 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
5h 13m1 stop Salt Lake City
$197Delta
Sun, Oct 4 - Tue, Oct 6
American Airlines Logo
7:15 am - 12:38 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
6h 23m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
1:02 pm - 9:59 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
7h 57m1 stop Phoenix Sky Harbor Intl
$248American Airlines
Sun, Oct 4 - Wed, Oct 7
American Airlines Logo
7:15 am - 12:38 pmDEN  Denver Intl-STS Santa Rosa Sonoma County
6h 23m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
4:23 pm - 9:59 pmSTS  Santa Rosa Sonoma County-DEN Denver Intl
4h 36m1 stop Phoenix Sky Harbor Intl
$248American 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 October.

Flight prices are below average for this route right now.

Flights to Santa Rosa from Denver usually cost between $366 and $582 in October.
The lowest price found in the past 5 days was $159 on Southwest (Oct 3-Oct 5).

What’s the cheapest day of the week to fly from Denver to Santa Rosa?

The average price of all round-trip flights from Denver to Santa Rosa clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Denver to Santa Rosa, look for departures on Fridays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Santa Rosa, Friday is the cheapest day to fly and Monday is the most expensive.

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 February and May, where the average cost of round-trip tickets is $634 and $561 respectively.

Can I save money by flying with a layover from Denver to Santa Rosa?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $333 on average.

Good to know

Low season

March

Cheapest flight

$80
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 5% 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

  • How many flights are there between Denver and Santa Rosa per day?

    There is a maximum of 1 nonstop flight a day that takes off from Denver and lands in Santa Rosa, with an average flight time of 2h 38m. The most common departure time is 8:00 am and most flights take off in the morning. Each week, there are 5 flights.

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

    In the last 5 days, the lowest price for a flight from Denver to Santa Rosa was $80 for a one-way ticket and $159 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?

    The Airbus A320neo is the aircraft model that flies most regularly on the Denver to Santa Rosa flight 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 Monday, Thursday, Friday, Saturday, and Sunday.

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

    The two airlines most popular with KAYAK users for flights from Denver to Santa Rosa are Southwest and Alaska Airlines. With an average price for the route of $437 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $473 and an overall rating of 7.9.

  • 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 $345 or less round-trip.

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

Monday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Santa Rosa Sonoma County to Denver Intl

Monday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 3 airlines serving 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
SouthwestOverall score based on 4220 reviews
8.6Crew
8.0Comfort
8.1Boarding
7.5Entertainment
7.0Food
Airline reviews

Poor customer service, no accommodation for passengers when the flight was delayed over 5 hours.

2.0 MediocreChristopher, Jul 2026
Read more Southwest reviews

Poor customer service, no accommodation for passengers when the flight was delayed over 5 hours.

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

Connecting flight is on time and boarding was a breeze!

Southwest has a serious issue with keeping their passengers in the dark about delays. They also appear to lack the necessary crews to deal with any sort of hiccup in their operations. The way they run their day-to-day operations is a joke. You are telling me that a hail storm in Denver, where hail storms are incredibly common, results in hours of delays due to every plane needing to be inspected for hail damage? Understandable, but there seems to be a skeleton crew of maintenance workers undergoing this daunting task. There was no particular order of inspecting planes, leading to some planes only having an hour delay or less in others having four or more just because of the luck of the draw of what plane got inspected with no consideration to how long the respective delay was. The entire time the passengers were told nothing except the fact that there was lightning in the area and the ground crews could not load the bags. This always happens that Southwest will incrementally delay a flight with no information given, leaving many frustrated passengers fuming once they find out that their flight is canceled. Don't make people wait around for hours at the airport giving them no information, just to keep them on the hook and prevent any action from being taken by the passengers in terms of finding alternate routes of transportation or accommodations for the night. How many hours of people's times do you think you waste by operating like this? How about having a fully staffed crew in one of your busiest hubs that is famous for severe weather that can effectively deal with a situation like this, or how about having planes on standby to quickly replace in case something like this happens, like all the other major airlines do. This is just like the Christmas fiasco but on a Denver scale, but again this is literally just from a single thunderstorm going over Denver in the spring. I'm glad I've stopped using Southwest as my primary airline and have switched to United. Every single time I fly Southwest, something has to come up. It's ridiculous and I seriously can't wait to finish using my miles so I don't have to deal with your garbage anymore. You used to be so good and I don't know why you thought you could just scrap your quality and expect people to deal with it. Oh, and I walked by someone getting CPR for over 5 minutes in the concourse. I hope he was ok. Southwest needs something similar.

Flight had over 6 people in wheel chairs and there was only 1 gate agent. Very impressed though in how Maddie handled having to efficiency move that many people by herself. We still nursed in a timely manner.

I loved that the flight was not as full, so we were able to have seats available between us. I just wish wipes are available as we board so that we can clean our areas, as the window area was quite dirty in my case, on both legs of this trip, and it was hard getting the flight attendant's attention for this. She also seemed a bit stingy with the free drinks. I asked for two cups of drinks; she brought one and then waited until I fell asleep and brought the other. Not sure why...

Easy boarding, but no power at the seats and no television wasn’t a good experience.

I have been trying to cancel my flight from 2 hours before and still have not been able to

Flight delayed by over an hour…not their fault exactly, but it wasn’t convenient either. Other than that a great flight and STUCK the landing!

We showed up to our gate less than 15 minutes after boarding started and they wouldn’t let us in. It was still 15 minutes even before take off so we’re weren’t even late to the flight.

The flight itself was great. But we had to wait over an hour to deplane so I missed my train. Not the crews fault. They were wonderful!

Wish there were more complimentary drinks available - only had water and apple juice. Also - no snacks were provided during the flight, but we were offered some items as we exited the plane.

On this flight there wer only 25 people on board. So no one in 5 rows ahead of me and noone in 7 rows behind me. So very chill.

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

My mother suffers from Lupus and has challenges walking. I specifically called Alaska airlines, stated her condition and made sure my mother’s had wheel char assistance towards gate and into the gate hall so she just had to get into the plane and walk a couple of steps. It was assured by Alaska team that the service was granted in both airports , DEN and SAN . In Denver , the wheelchair assistance never arrived. I had to personally grab another airline wheelchair sit my mom.Then I had to go to Alaska Airlines front desk twice to let them know my mother was waiting at the wheelchair service station. Upon arrival to SD Airport , there was no wheelchair service waiting for her in the hall before deplaning. She had to walk her way out in pain. Absolutely inconsiderate and unacceptable by the airline! Never again flying with Alaska Airlines.

Waiting 2 hours after landing to arrive at a gate was ridiculous.

This was not an Alaska Airlines flight, it was American Airlines flight operated by SkyWest. The aircraft was narrow body ERJ175. But it is a modern regional jet and relatively comfortable.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

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.

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.

Mechanical delay and no compensation. Missed connection as a result of their delay. Mediocre performance and service. Horrible airline currently with horrible culture.

Any sort of gluten free snack option would be nice

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

It would have been better if I could have had my flight on time. It was delayed for 5 hours. Caused me to not be able to fulfill my promise to my granddaughters. Other than that it was a good trip.

11h50m total delay. Had to switch to another flight that was still a 7h30m delay.

Delay 14 hours! Missed all connections and had to fly different airline the next day.

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

Information on your arrival and departure airports