$138+ Cheap flights from Santa Rosa to Denver (STS - DEN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
STS — DEN
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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Find cheap flights from Santa Rosa to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Santa Rosa Sonoma County to Denver Intl are usually found in March or November, booked 50 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from Santa Rosa to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Santa Rosa to DenverExplore the most affordable flight options available from Santa Rosa to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
Explore the most affordable flight options available from Santa Rosa to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
This CheapTickets deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:34 am
STS
- DEN
1 stop7h 52m
Multiple Airlines
Wed 8/267:40 am
DEN
- STS
1 stop17h 14m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$246
This Trip.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:13 am
STS
- DEN
1 stop12h 07m
Multiple Airlines
Thu 8/273:00 pm
DEN
- STS
1 stop7h 59m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:13 am
STS
- DEN
1 stop12h 13m
Alaska Airlines
Wed 9/168:06 pm
DEN
- STS
1 stop14h 48m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$275
This Trip.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:13 am
STS
- DEN
1 stop14h 00m
Alaska Airlines
Thu 8/276:17 am
DEN
- STS
1 stop18h 37m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$278
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:13 am
STS
- DEN
1 stop14h 00m
Alaska Airlines
Wed 8/266:17 am
DEN
- STS
1 stop18h 37m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$283
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:13 am
STS
- DEN
1 stop16h 31m
Alaska Airlines
Wed 9/168:06 pm
DEN
- STS
1 stop14h 48m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$285
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:13 am
STS
- DEN
1 stop16h 31m
Alaska Airlines
Mon 9/146:17 am
DEN
- STS
1 stop18h 37m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:16 am
STS
- DEN
1 stop28h 19m
Alaska Airlines
Sat 10/316:58 pm
DEN
- STS
1 stop6h 01m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$297
Best flights from Santa Rosa to DenverDiscover carefully curated flight deals from Santa Rosa to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
Discover carefully curated flight deals from Santa Rosa to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:56 pm
STS
- DEN
1 stop15h 37m
Alaska Airlines
Tue 7/216:00 am
DEN
- STS
1 stop5h 24m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$311
This Southwest deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:45 pm
STS
- DEN
Nonstop2h 30m
Southwest
Mon 8/1710:35 am
DEN
- STS
Nonstop2h 40m
Southwest
Deal found 6/21![Southwest logo]()
$313
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:25 am
STS
- DEN
1 stop6h 45m
Delta
Mon 10/125:40 am
DEN
- STS
1 stop5h 59m
Delta
Deal found 6/20![Delta logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:13 am
STS
- DEN
1 stop5h 07m
Alaska Airlines
Thu 9/176:17 am
DEN
- STS
1 stop18h 37m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:40 pm
STS
- DEN
2 stops6h 40m
Southwest
Thu 8/276:40 am
DEN
- STS
2 stops8h 40m
Southwest
Deal found 6/18![Southwest logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:58 pm
STS
- DEN
2 stops8h 54m
Alaska Airlines
Sat 10/313:04 pm
DEN
- STS
1 stop5h 43m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:55 pm
STS
- DEN
2 stops7h 05m
Southwest
Mon 8/1710:35 am
DEN
- STS
Nonstop2h 40m
Southwest
Deal found 6/20![Southwest logo]()
$350
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:13 am
STS
- DEN
1 stop5h 07m
Alaska Airlines
Sun 8/306:17 am
DEN
- STS
1 stop18h 37m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$348
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1810:30 am
STS
- DEN
2 stops8h 35m
Southwest
Sat 7/256:00 am
DEN
- STS
2 stops8h 30m
Southwest
Deal found 6/20![Southwest logo]()
$365
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:26 am
STS
- DEN
1 stop16h 04m
Alaska Airlines
Mon 8/176:00 am
DEN
- STS
2 stops12h 16m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:26 am
STS
- DEN
1 stop16h 04m
Alaska Airlines
Sat 8/221:43 pm
DEN
- STS
1 stop21h 11m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$363
Last-minute flights from Santa Rosa to DenverDiscover last-minute flight deals from Santa Rosa to Denver. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Santa Rosa to Denver. Data last updated June 21, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:26 am
STS
- DEN
1 stop11h 52m
Alaska Airlines
Wed 8/198:06 pm
DEN
- STS
1 stop14h 48m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/152:15 pm
STS
- DEN
2 stops7h 55m
Southwest
Tue 7/216:00 am
DEN
- STS
1 stop6h 05m
Southwest
Deal found 6/19![Southwest logo]()
$316
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:26 am
STS
- DEN
1 stop11h 52m
Alaska Airlines
Thu 8/201:43 pm
DEN
- STS
1 stop11h 11m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$323
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:26 am
STS
- DEN
1 stop16h 04m
Alaska Airlines
Sat 7/186:00 am
DEN
- STS
1 stop5h 24m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1810:30 am
STS
- DEN
2 stops8h 35m
Southwest
Sat 7/257:55 am
DEN
- STS
Nonstop2h 40m
Southwest
Deal found 6/20![Southwest logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:26 am
STS
- DEN
1 stop16h 04m
Alaska Airlines
Wed 8/191:43 pm
DEN
- STS
1 stop11h 11m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$328
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:26 am
STS
- DEN
1 stop16h 04m
Alaska Airlines
Thu 8/201:43 pm
DEN
- STS
1 stop11h 11m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$338
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:56 pm
STS
- DEN
1 stop15h 37m
Alaska Airlines
Wed 7/296:00 am
DEN
- STS
1 stop5h 24m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:56 pm
STS
- DEN
1 stop15h 37m
Alaska Airlines
Wed 8/56:00 am
DEN
- STS
2 stops12h 16m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$331
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:56 pm
STS
- DEN
1 stop24h 22m
Alaska Airlines
Tue 8/47:59 pm
DEN
- STS
1 stop27h 59m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$335
One-way flights from Santa Rosa to DenverSearch for one-way flight options from Santa Rosa to Denver. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
Search for one-way flight options from Santa Rosa to Denver. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:13 am
STS
- DEN
1 stop5h 07m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$138
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:13 am
STS
- DEN
1 stop5h 07m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$142
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:56 pm
STS
- DEN
1 stop17h 24m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$143
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:45 pm
STS
- DEN
Nonstop2h 30m
Southwest
Deal found 6/19![Southwest logo]()
$146
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:13 am
STS
- DEN
1 stop5h 07m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$148
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:13 am
STS
- DEN
1 stop5h 07m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$152
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:13 am
STS
- DEN
1 stop16h 31m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$153
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/154:55 pm
STS
- DEN
1 stop4h 38m
Delta
Deal found 6/18![Delta logo]()
$156
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:00 am
STS
- DEN
2 stops6h 35m
Southwest
Deal found 6/17![Southwest logo]()
$161
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:13 am
STS
- DEN
1 stop5h 07m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$162
Find flight deals from Santa Rosa to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (CheapTickets) |
One-way from | $138 (Alaska Airlines) |
Popular in | December |
Cheapest in | March |
Average price | $446 |
Good round-trip deal | $388 or less |
Good one-way deal | $231 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Santa Rosa to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
Use the filters below to find and compare flights from Santa Rosa to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Wed 7/15
5:56 pm-10:33 am
1 stop15h 37m
Denver Intl
Tue 7/21
6:00 am-10:24 am
1 stop5h 24m
$311
Quickest round-trip
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Sat 8/15
12:45 pm-4:15 pm
Nonstop2h 30m
Denver Intl
Mon 8/17
10:35 am-12:15 pm
Nonstop2h 40m
$313
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Sun 9/13
6:13 am-12:20 pm
1 stop5h 07m
Denver Intl
Thu 9/17
6:17 am-11:54 pm
1 stop18h 37m
$313
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Wed 8/19
1:40 pm-9:20 pm
2 stops6h 40m
Denver Intl
Thu 8/27
6:40 am-2:20 pm
2 stops8h 40m
$327
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Tue 10/27
1:58 pm-11:52 pm
2 stops8h 54m
Denver Intl
Sat 10/31
3:04 pm-7:47 pm
1 stop5h 43m
$337
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Sat 10/10
11:25 am-7:10 pm
1 stop6h 45m
Denver Intl
Mon 10/12
5:40 am-10:39 am
1 stop5h 59m
$345
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Fri 8/28
6:13 am-12:20 pm
1 stop5h 07m
Denver Intl
Sun 8/30
6:17 am-11:54 pm
1 stop18h 37m
$348
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Thu 8/13
2:55 pm-11:00 pm
2 stops7h 05m
Denver Intl
Mon 8/17
10:35 am-12:15 pm
Nonstop2h 40m
$350
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Mon 8/10
6:26 am-11:30 pm
1 stop16h 04m
Denver Intl
Mon 8/17
6:00 am-5:16 pm
2 stops12h 16m
$356
Santa RosaDenver
STS - DEN
STSDEN
Santa Rosa Sonoma County
Thu 8/13
6:26 am-11:30 pm
1 stop16h 04m
Denver Intl
Sat 8/22
1:43 pm-9:54 am
1 stop21h 11m
$363
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Santa Rosa to Denver
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Santa Rosa to Denver in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Santa Rosa-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Santa Rosa-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Santa Rosa-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Santa Rosa-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Santa Rosa-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Santa Rosa to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Santa Rosa with our price prediction graph.
STS-DEN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Santa Rosa to Denver
How far ahead should I book a flight from Santa Rosa to Denver?
Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from Santa Rosa to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Santa Rosa to Denver?
Currently, March is the cheapest month in which you can book a flight from Santa Rosa to Denver (average of $249). Flying from Santa Rosa to Denver in December is currently the most expensive (average of $573). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from STS to DEN?
Find hourly flight availability from Santa Rosa to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 21, 2026.
When flying from Santa Rosa to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated June 21, 2026.
Read through reviews of airlines operating flights from Santa Rosa to Denver, such as Alaska Airlines,Southwest, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Overall
7.9
Food
7.1
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Overall
7.9
Food
7.1
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Overall
7.9
Food
7.1
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Overall
7.9
Food
7.1
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from Santa Rosa to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Black Hawk
Centennial
Westminster
Lakewood
Broomfield
Golden
Greeley
Fort Morgan
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
Evergreen
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Other flights to Denver
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Santa Rosa and Denver flights
Browse other Santa Rosa and Denver flight options. Last updated on June 21, 2026.
Other flights from Santa Rosa
Browse through other flights departing from Santa Rosa. Flights are based on user searches made on Cheapflights and were last updated on June 21, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Santa Rosa to Denver
Discover the top 3 airlines that operate flights from Santa Rosa to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$244 | Average$402 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$334 | Average$418 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$340 | Average$507 | FlexibilityNo cancel fee | On-time71% |