DEN - STS

$139 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 9/6. 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

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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Flights 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 16 - Tue, Sep 23
Hawaiian Airlines Logo
8:00 am - 1:36 pmDEN-STS
6h 36m1 stop
Hawaiian Airlines Logo
7:00 am - 2:06 pmSTS-DEN
6h 06m1 stop
$278Hawaiian Airlines
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Tue, Sep 16 - Wed, Sep 24
Alaska Airlines Logo
8:00 am - 1:36 pmDEN-STS
6h 36m1 stop
Alaska Airlines Logo
7:00 am - 2:06 pmSTS-DEN
6h 06m1 stop
$279Alaska Airlines
Find Deal
Wed, Sep 17 - Tue, Sep 23
Alaska Airlines Logo
6:00 am - 11:14 amDEN-STS
6h 14m1 stop
Alaska Airlines Logo
3:07 pm - 11:05 pmSTS-DEN
6h 58m1 stop
$290Alaska Airlines
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Sat, Sep 20 - Tue, Sep 23
Alaska Airlines Logo
3:02 pm - 8:23 pmDEN-STS
6h 21m1 stop
Alaska Airlines Logo
7:00 am - 2:06 pmSTS-DEN
6h 06m1 stop
$305Alaska Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
Alaska Airlines Logo
8:00 am - 1:36 pmDEN-STS
6h 36m1 stop
Alaska Airlines Logo
7:03 am - 8:27 pmSTS-DEN
12h 24m2 stops
$306Alaska Airlines
Find Deal
Wed, Sep 17 - Sun, Sep 21
Alaska Airlines Logo
8:00 am - 1:36 pmDEN-STS
6h 36m1 stop
Alaska Airlines Logo
7:00 am - 2:06 pmSTS-DEN
6h 06m1 stop
$316Alaska Airlines
Find Deal
Wed, Oct 1 - Fri, Oct 10
Hawaiian Airlines Logo
8:00 am - 1:36 pmDEN-STS
6h 36m1 stop
Hawaiian Airlines Logo
6:25 am - 2:00 pmSTS-DEN
6h 35m1 stop
$325Hawaiian Airlines
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Fri, Sep 19 - Fri, Sep 19
American Airlines Logo
8:00 am - 12:29 pmDEN-STS
5h 29m1 stop
American Airlines Logo
4:19 pm - 10:31 pmSTS-DEN
5h 12m1 stop
$683American Airlines
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Fri, Aug 8 - Sun, Aug 10
American Airlines Logo
6:00 am - 3:47 pmDEN-STS
10h 47m2 stops
American Airlines Logo
4:17 pm - 10:05 pmSTS-DEN
4h 48m1 stop
$686American Airlines
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Thu, Jul 24 - Sun, Jul 27
American Airlines Logo
7:50 am - 12:31 pmDEN-STS
5h 41m1 stop
American Airlines Logo
1:01 pm - 9:42 pmSTS-DEN
7h 41m1 stop
$749American Airlines
Find Deal
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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’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 Sundays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Santa Rosa, Thursday 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 $310 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $599 and $587 respectively.

Good to know

Low seasonFebruary
High seasonMarch
Cheapest flight$139
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 36% 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 $139 for a one-way ticket and $278 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 $477 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 $540 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 10000 reviews
7.1Food
7.1Entertainment
8.1Boarding
8.5Crew
7.8Comfort
Airline reviews

As always to close confinement for passengers not in upgrades. I like that you still get carry on and personal bag.

8.0 ExcellentJames, Jul 2025EWR - SFO
Read more Alaska Airlines reviews

As always to close confinement for passengers not in upgrades. I like that you still get carry on and personal bag.

I purchased the internet during the flight and it stopped working after 1 hour, so I barely got to use it.

I had a negative experience, the flight delay was very long, I didn't like it

Original flight was canceled, and the automatically booked second flight was immediately delayed. I arrived about 4 hours later than planned with only a $12 meal voucher that didn't fully cover a sandwich at airport prices.

It was very good and comfortable, Crew was also great

Good experience, although it was a little cramped being a tall person. Otherwise everything went smoothly and professionally though

Delay of more than 3 hours I didnt recieve neither a voucher for food Attention disaster

I'm a platinum member with American Airlines, however, my ticket did not display status and thus I did not board with an early group. I traveled with my two daughters and we were given a row of seats that did not recline. Not the treatment I would have expected for a platinum customer. The flight was also a bit late leaving Portland. Also on my flight to Portland we were not given premium seats. In fact, we were in the last row of the aircraft.

The seats in first class are very dated and quite uncomfortable. I don’t need lie-flat seats for a 6 hour flight, but more recline is really necessary.

One of the stewardess, Tre, went above and beyond to ensure my comfort!

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

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

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Long 5 hour and 45 min flight and only one drink service and cookie snack

Any sort of gluten free snack option would be nice

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

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

Information on your arrival and departure airports

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