$427+ Cheap flights from Billings to Santa Rosa (BIL - STS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — STS
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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Find cheap flights from Billings to Santa Rosa 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.Cheap flight deals from Billings to Santa Rosa
Cheapest
Best
Last-minute
Cheapest flights from Billings to Santa RosaExplore the most affordable flight options available from Billings to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
Explore the most affordable flight options available from Billings to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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 12/52:03 pm -
1 stop6h 07m
Tue 12/810:00 am -
2 stops28h 08m
Deal found 8/6![Alaska Airlines logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 10/227:41 am -
2 stops12h 44m
Tue 10/272:00 pm -
2 stops32h 50m
Deal found 8/7![Alaska Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 10/233:44 pm -
1 stop5h 03m
Wed 10/282:00 pm -
2 stops27h 52m
Deal found 8/7![Alaska Airlines logo]()
$457
Best flights from Billings to Santa RosaDiscover carefully curated flight deals from Billings to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
Discover carefully curated flight deals from Billings to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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 12/56:00 am -
1 stop7h 16m
Tue 12/810:00 am -
2 stops28h 08m
Deal found 8/8![Alaska Airlines logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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 10/227:41 am -
2 stops12h 44m
Tue 10/272:00 pm -
2 stops8h 50m
Deal found 8/8![Alaska Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 10/233:44 pm -
1 stop5h 03m
Wed 10/282:00 pm -
2 stops27h 52m
Deal found 8/10![Alaska Airlines logo]()
$457
Last-minute flights from Billings to Santa RosaDiscover last-minute flight deals from Billings to Santa Rosa. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to Santa Rosa. Data last updated August 11, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 8/116:00 am -
1 stop6h 58m
Tue 8/187:00 am -
1 stop7h 03m
Deal found 8/7![Alaska Airlines logo]()
$703
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 8/226:21 pm -
1 stop15h 54m
Wed 8/265:34 pm -
1 stop4h 55m
Deal found 8/7![Alaska Airlines logo]()
$718
This Booking.com deal was found by Cheapflights users on 8/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:29 pm -
1 stop27h 30m
Sun 9/137:03 am -
1 stop27h 37m
Deal found 8/9![Alaska Airlines logo]()
$583
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 9/107:29 pm -
2 stops22h 27m
Sun 9/137:03 am -
1 stop27h 37m
Deal found 8/10![Alaska Airlines logo]()
$548
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/117:29 pm -
2 stops19h 43m
Sun 9/137:03 am -
1 stop27h 37m
Deal found 8/11![Alaska Airlines logo]()
$532
Find flight deals from Billings to Santa Rosa
Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Santa Rosa (STS). 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 August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $427 (Alaska Airlines) |
Popular in | August |
Cheapest in | February |
Average price | $647 |
Cheapflights Fare Finder
Customize your flight search to find flights from Billings to Santa Rosa 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 August 11, 2026.
Use the filters below to find and compare flights from Billings to Santa Rosa that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BillingsSanta Rosa
BIL Billings Logan Intl - STS Santa Rosa Sonoma County
BILSTS
Billings Logan Intl
Sat 12/5
6:00 am-12:16 pm
1 stop7h 16m
Santa Rosa Sonoma County
Tue 12/8
10:00 am-3:08 pm
2 stops28h 08m
$427
Quickest round-trip
BillingsSanta Rosa
BIL Billings Logan Intl - STS Santa Rosa Sonoma County
BILSTS
Billings Logan Intl
Thu 10/22
7:41 am-7:25 pm
2 stops12h 44m
Santa Rosa Sonoma County
Tue 10/27
2:00 pm-11:50 pm
2 stops8h 50m
$437
BillingsSanta Rosa
BIL Billings Logan Intl - STS Santa Rosa Sonoma County
BILSTS
Billings Logan Intl
Fri 10/23
3:44 pm-7:47 pm
1 stop5h 03m
Santa Rosa Sonoma County
Wed 10/28
2:00 pm-6:52 pm
2 stops27h 52m
$457
Sorted by cheapest first
Compare providers for flights from Billings to Santa Rosa
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 Billings to Santa Rosa in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Billings-Santa Rosa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Santa Rosa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Santa Rosa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Billings-Santa Rosa 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 Billings-Santa Rosa 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 Billings to Santa Rosa
Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Billings with our price prediction graph.
BIL-STS
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.
Reviews of airlines servicing Santa Rosa
Get insights into the airlines that provide service to Santa Rosa. 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 Santa Rosa. Reviews last updated August 11, 2026.
Read reviews from past customers who have flown Alaska Airlines from Billings to Santa Rosa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.0
Comfort
7.8
Overall
7.9
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Food
7.0
Comfort
7.8
Overall
7.9
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Billings to Santa Rosa. 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 Santa Rosa?
Book flights to Santa Rosa if you plan to visit one of these locationsFort Bragg
Ukiah
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Billings and Santa Rosa flights
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Top airline flying from Billings to Santa Rosa
Discover the top airline that operate flights from Billings to Santa Rosa. 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 August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$242 | Average$497 | FlexibilityNo cancel fee | On-time75% |