STS - DEN

$132 Find Cheap Flights from Santa Rosa to Denver - 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 Santa Rosa to Denver departing on 8/19. 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 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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Everything you should know

Cheapest round-trip
$258
Typical prices: $388-$475
Alaska Airlines
Tue 8/18Thu 8/27
STS - DEN • 1 stop
Cheapest non-stop
$291
Southwest
Sat 8/29Sat 9/5
STS - DEN • Non-stop
Nonstop flights
5 days a week
Mon, Thu, Fri, Sat, Sun
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 $258 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $441 (round-trip)
Shortest trip • 5h 23m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 39% 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 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

Tue, Aug 18 - Thu, Aug 27
Alaska Airlines Logo
5:56 pm - 7:26 pm
STS
-
DEN
24h 30m
1 stop
Alaska Airlines Logo
6:17 am - 11:54 pm
DEN
-
STS
18h 37m
1 stop
$258Alaska Airlines
Tue, Aug 18 - Thu, Aug 27
Alaska Airlines Logo
5:56 pm - 7:26 pm
STS
-
DEN
24h 30m
1 stop
Alaska Airlines Logo
6:17 am - 11:54 pm
DEN
-
STS
18h 37m
1 stop
$262Alaska Airlines
Tue, Aug 18 - Wed, Aug 26
Alaska Airlines Logo
11:04 am - 12:20 pm
STS
-
DEN
24h 16m
1 stop
Alaska Airlines Logo
6:17 am - 2:12 pm
DEN
-
STS
8h 55m
1 stop
$263Alaska Airlines
Tue, Aug 18 - Thu, Aug 27
Alaska Airlines Logo
11:04 am - 12:20 pm
STS
-
DEN
24h 16m
1 stop
Alaska Airlines Logo
6:17 am - 11:54 pm
DEN
-
STS
18h 37m
1 stop
$273Alaska Airlines
Wed, Aug 19 - Fri, Aug 28
Alaska Airlines Logo
10:34 am - 9:13 pm
STS
-
DEN
9h 39m
1 stop
Alaska Airlines Logo
8:06 pm - 9:54 am
DEN
-
STS
14h 48m
1 stop
$279Alaska Airlines
Thu, Aug 20 - Thu, Aug 27
Alaska Airlines Logo
6:13 am - 12:20 pm
STS
-
DEN
5h 07m
1 stop
Alaska Airlines Logo
6:17 am - 11:54 pm
DEN
-
STS
18h 37m
1 stop
$283Alaska Airlines
Tue, Oct 27 - Sat, Oct 31
Alaska Airlines Logo
6:16 am - 11:35 am
STS
-
DEN
28h 19m
1 stop
Alaska Airlines Logo
6:58 pm - 11:59 pm
DEN
-
STS
6h 01m
1 stop
$287Alaska Airlines
Wed, Aug 19 - Sat, Aug 29
Alaska Airlines Logo
6:13 am - 7:26 pm
STS
-
DEN
12h 13m
1 stop
Alaska Airlines Logo
1:43 pm - 9:54 am
DEN
-
STS
21h 11m
1 stop
$288Alaska Airlines
Sat, Aug 29 - Sat, Sep 5
Southwest Logo
12:45 pm - 4:15 pm
STS
-
DEN
2h 30mnonstop
Southwest Logo
9:20 am - 11:00 am
DEN
-
STS
2h 40mnonstop
$291Southwest
Sat, Aug 15 - Mon, Aug 17
Southwest Logo
12:45 pm - 4:15 pm
STS
-
DEN
2h 30mnonstop
Southwest Logo
10:35 am - 12:15 pm
DEN
-
STS
2h 40mnonstop
$292Southwest
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.

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

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

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

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

For Santa Rosa to Denver, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Denver back to Santa Rosa, the best deals are generally found on Saturday, with Thursday being the most expensive.

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 March, where tickets cost $249 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $573 and $489 respectively.

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

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.

No, with an average price for the route of $410, prices are generally cheapest when you fly direct.

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 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$132
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 1% 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

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

    There is a maximum of 1 nonstop flight a day that takes off from Santa Rosa and lands in Denver, with an average flight time of 2h 35m. The most common departure time is 2:00 pm and most flights take off in the afternoon. Each week, there are 1 flights.

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

    In the last 5 days, the lowest price for a flight from Santa Rosa to Denver was $132 for a one-way ticket and $258 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 A320neo 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.

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

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

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

    The two airlines most popular with KAYAK users for flights from Santa Rosa to Denver are Southwest and Alaska Airlines. With an average price for the route of $418 and an overall rating of 7.9, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $405 and an overall rating of 7.9.

  • 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 $231 or less one-way and $388 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

Monday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

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

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.
7.9
Alaska AirlinesOverall score based on 12581 reviews
7.0Entertainment
7.0Food
8.1Boarding
8.5Crew
7.8Comfort
Airline reviews

Orderly boarding; engaged, attentive and detailed flight crew. Late out of the gate but time recovered during flight; super landing and deplaning.

10.0 ExcellentMark, Jun 2026
SAN - DEN
Read more Alaska Airlines reviews

Orderly boarding; engaged, attentive and detailed flight crew. Late out of the gate but time recovered during flight; super landing and deplaning.

Although delayed an hour, the gate attendants kept us notified and the rest of the trip went off with no issues.

All airlines should board planes back to front, instead of catering to higher priced tickets. The boarding groups are inefficient and delay takeoff time

Liked the attention and speed when getting wheelchair..........Was assured by phone that my needs would be taken care of and they were with my name.

Crew very courteous. Boarding was great. Slow to get baggage at Denver.

Sitting on the ground for 2 hours waiting for a gate wasn't fun.

The crew was great! Passengers were nice. Just an fyi that I heard several of them complain that the snack was not gluten free. Many people got handed the snack and then promptly gave it back to the flight attendant. Might be good to look into another option as such a high percentage of people in CO and WA are gf. Cheers!

First time flying with Alaska, and it went great. Thank you for a great experience flying to PDX.

I was pleasantly surprised to discover that Alaskan Airlines allows normal leg space in the economy class cabin, offers free movies and other entertainment programs via WiFi. The staff was friendly and worked hard to make this long flight enjoyable.

We have always flown with Alaska when we can. As they have great customer service. This trip we had to transfer to Air LINGUS in Denver to go to Dublin. That’s where things went bad! Our checked luggage didn’t arrive. The process to make a claim was way more complicated than it should be. It took 5 days to recover our luggage. The whole time we couldn’t talk to a real person who could tell us anything. The whole time Alaska blamed Air lingus and vis a versa. No one seemed want to help us. That was the worst part.

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

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.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

The 700 model seating is too tight both seat size & leg room

Flights were full but SWA still managed to get everyone loaded and depart on time. No snack or beverage service on the first leg due to turbulance. Seats were clean but very little cushioning. Reasonable amount of leg room.

Our two flights from GRR to MDW and MDW to OAK were both delayed due to weather. Be sure to build in a sufficient buffer in the transfer time to account for this type of problem. SW recommends connections as short as 40 min. Don't do this. We had to change concourses in MDW, a pretty long walk, to make our connection. Rule of thumb I use when traveling on flights with multiple legs is for connections of 80 min or more, unless there is no plane change, in which case it doesn't matter.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

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.

Our bags took a long time to get unloaded once we landed.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

One of the best flights I’ve had. So smooth.

Because I can’t stand very long in one place, I was allowed to reword.

Flight to Phoenix was delayed 1 hour and was not weather related. Flight Denver was delayed 2.5 hours and again was not weather related as the plane came from San Francisco.

Flight was late because our pilots were late. Also the air vents above our seat didn't work.

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

Information on your arrival and departure airports