$248+ Cheap flights from St. Louis to Santa Rosa (STL - STS)
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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STS
May 4 — May 111
1 adult, Economy
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Find cheap flights from St. Louis 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 St. Louis to Santa Rosa
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 April 29, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $471 (Alaska Airlines) |
One-way from | $248 (Alaska Airlines) |
Popular in | April |
Cheapest in | December |
Average price | $822 |
Find flight deals from St. Louis to Santa Rosa
Cheapest flights from St. Louis to Santa RosaExplore the most affordable flight options available from St. Louis to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.
Explore the most affordable flight options available from St. Louis to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 9/236:00 amSTL - STS
2 stops15h 12mAlaska Airlines
Tue 9/307:03 amSTS - STL
2 stops14h 56mAlaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$471
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/205:19 amSTL - STS
1 stop8h 25mAmerican Airlines
Tue 5/274:21 pmSTS - STL
1 stop5h 37mAmerican Airlines
Deal found 4/27![American Airlines logo]()
$489
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/136:30 amSTL - STS
1 stop7h 27mHawaiian Airlines
Sat 5/177:00 amSTS - STL
1 stop8h 22mHawaiian Airlines
Deal found 4/28![Hawaiian Airlines logo]()
$711
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 April 29, 2025.
Use the filters below to find and compare flights from St. Louis to Santa Rosa that are best for you.
Fly from
St. Louis
Fly to
Santa Rosa
Route
Depart
Return
Price
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 9/23
6:00 am-7:12 pm
2 stops15h 12m
Santa Rosa Sonoma County
Wed 10/1
7:03 am-11:59 pm
2 stops14h 56m
$471
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 5/20
5:19 am-11:44 am
1 stop8h 25m
Santa Rosa Sonoma County
Tue 5/27
4:21 pm-11:58 pm
1 stop5h 37m
$489
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 5/13
6:30 am-11:57 am
1 stop7h 27m
Santa Rosa Sonoma County
Sat 5/17
7:00 am-5:22 pm
1 stop8h 22m
$711
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 6/24
7:32 pm-7:07 pm
1 stop25h 35m
$248
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Sat 6/21
5:37 am-11:50 am
1 stop8h 13m
$290
Compare providers for flights from St. Louis 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 St. Louis to Santa Rosa in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on St. Louis-Santa Rosa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Santa Rosa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Santa Rosa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Santa Rosa flights, Cheapflights users trust Expedia the most. Expedia 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 St. Louis-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 St. Louis to Santa Rosa
Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from St. Louis with our price prediction graph.
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 St. Louis to Santa Rosa
What is the cheapest month to book a flight from St. Louis to Santa Rosa?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Santa Rosa (average of $202). Flying from St. Louis to Santa Rosa in June is currently the most expensive (average of $395). 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 STL to STS?
Find hourly flight availability from St. Louis to Santa Rosa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.
When flying from St. Louis to Santa Rosa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Rainfall in Santa Rosa by month
Plan your trip to Santa Rosa by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Santa Rosa ranges from 0.0 - 7.1 inches per month. January is typically the wettest month, when rainfall can reach 7.1 in. July is typically the driest time to visit Santa Rosa when rainfall is around 0.0 in.
Temperature in Santa Rosa by month
Plan your trip to Santa Rosa by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Santa Rosa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).
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 April 29, 2025.
Entertainment
7.1
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Entertainment
7.1
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Entertainment
7.1
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Entertainment
7.1
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Santa Rosa
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from St. Louis to Santa Rosa
Discover the top airline that operate flights from St. Louis 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 April 29, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$346 | Average$628 | FlexibilityNo cancel fee | On-time71% |