$285+ 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STS
Jul 27 — Aug 31
Round-trip
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
Cheapest
Best
Last-minute
One-way
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 June 27, 2026.
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 June 27, 2026.
This Southwest deal was found by Cheapflights users on 6/25. 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 10/38:30 am
STL
- STS
1 stop6h 45m
Southwest
Thu 10/82:30 pm
STS
- STL
1 stop6h 25m
Southwest
Deal found 6/25![Southwest logo]()
$398
This Expedia deal was found by Cheapflights users on 6/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:08 pm
STL
- STS
1 stop17h 07m
Alaska Airlines
Mon 8/246:53 pm
STS
- STL
1 stop20h 17m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$449
This Southwest deal was found by Cheapflights users on 6/23. 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 8/208:25 am
STL
- STS
1 stop7h 55m
Southwest
Mon 8/246:05 am
STS
- STL
2 stops9h 50m
Southwest
Deal found 6/23![Southwest logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 10/277:00 am
STL
- STS
1 stop8h 06m
Alaska Airlines
Wed 10/288:07 am
STS
- STL
2 stops13h 52m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 6/23. 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 10/152:55 pm
STL
- STS
2 stops10h 05m
Southwest
Sun 10/182:05 pm
STS
- STL
1 stop7h 45m
Southwest
Deal found 6/23![Southwest logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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 11/147:00 am
STL
- STS
1 stop9h 22m
Alaska Airlines
Tue 11/176:40 am
STS
- STL
2 stops10h 50m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$492
Best flights from St. Louis to Santa RosaDiscover carefully curated flight deals from St. Louis to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 27, 2026.
Discover carefully curated flight deals from St. Louis to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 27, 2026.
This Southwest deal was found by Cheapflights users on 6/25. 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 10/38:30 am
STL
- STS
1 stop6h 45m
Southwest
Thu 10/82:30 pm
STS
- STL
1 stop6h 25m
Southwest
Deal found 6/25![Southwest logo]()
$398
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 10/277:00 am
STL
- STS
1 stop8h 06m
Alaska Airlines
Wed 10/288:07 am
STS
- STL
2 stops13h 52m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 6/23. 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 10/155:55 am
STL
- STS
1 stop10h 00m
Southwest
Sun 10/182:05 pm
STS
- STL
1 stop7h 45m
Southwest
Deal found 6/23![Southwest logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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 11/147:00 am
STL
- STS
1 stop9h 22m
Alaska Airlines
Tue 11/176:40 am
STS
- STL
2 stops10h 50m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$492
Last-minute flights from St. Louis to Santa RosaDiscover last-minute flight deals from St. Louis to Santa Rosa. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Santa Rosa. Data last updated June 27, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 7/86:02 am
STL
- STS
1 stop7h 56m
Alaska Airlines
Sun 7/127:00 am
STS
- STL
1 stop7h 37m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$773
This Southwest deal was found by Cheapflights users on 6/23. 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 7/812:10 pm
STL
- STS
2 stops12h 40m
Southwest
Sun 7/1211:10 am
STS
- STL
2 stops10h 45m
Southwest
Deal found 6/23![Southwest logo]()
$789
This Alaska Airlines deal was found by Cheapflights users on 6/25. 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 7/116:02 am
STL
- STS
2 stops12h 53m
Alaska Airlines
Wed 7/157:25 am
STS
- STL
2 stops14h 34m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$729
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 7/115:33 am
STL
- STS
1 stop8h 30m
American Airlines
Wed 7/1512:43 pm
STS
- STL
1 stop7h 09m
American Airlines
Deal found 6/25![American Airlines logo]()
$779
This Orbitz deal was found by Cheapflights users on 6/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/125:37 pm
STL
- STS
1 stop7h 53m
Alaska Airlines
Wed 7/157:00 am
STS
- STL
1 stop7h 37m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$637
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Sun 7/125:32 am
STL
- STS
2 stops8h 58m
American Airlines
Wed 7/1512:43 pm
STS
- STL
1 stop9h 15m
American Airlines
Deal found 6/24![American Airlines logo]()
$645
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Sun 7/127:07 am
STL
- STS
2 stops10h 35m
American Airlines
Thu 7/1612:43 pm
STS
- STL
1 stop9h 09m
American Airlines
Deal found 6/27![American Airlines logo]()
$784
One-way flights from St. Louis to Santa RosaSearch for one-way flight options from St. Louis to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
Search for one-way flight options from St. Louis to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
This Delta deal was found by Cheapflights users on 6/23. 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.
Thu 12/247:20 am
STL
- STS
2 stops10h 48m
Delta
Deal found 6/23![Delta logo]()
$285
This Delta deal was found by Cheapflights users on 6/26. 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 10/69:45 am
STL
- STS
2 stops8h 23m
Delta
Deal found 6/26![Delta logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 6/24. 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 7/22:50 pm
STL
- STS
2 stops28h 05m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$484
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Sun 7/57:07 am
STL
- STS
1 stop6h 56m
American Airlines
Deal found 6/24![American Airlines logo]()
$485
This Delta deal was found by Cheapflights users on 6/26. 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.
Wed 10/149:45 am
STL
- STS
2 stops8h 23m
Delta
Deal found 6/26![Delta logo]()
$615
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/27:03 pm
STL
- STS
3 stops41h 42m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$785
Find 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 June 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $398 (Southwest) |
One-way from | $285 (Delta) |
Popular in | October |
Cheapest in | April |
Average price | $573 |
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 June 27, 2026.
Use the filters below to find and compare flights from St. Louis to Santa Rosa that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Sat 10/3
8:30 am-1:15 pm
1 stop6h 45m
Santa Rosa Sonoma County
Thu 10/8
2:30 pm-10:55 pm
1 stop6h 25m
$398
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 10/27
7:00 am-1:06 pm
1 stop8h 06m
Santa Rosa Sonoma County
Wed 10/28
8:07 am-11:59 pm
2 stops13h 52m
$487
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Thu 10/15
5:55 am-1:55 pm
1 stop10h 00m
Santa Rosa Sonoma County
Sun 10/18
2:05 pm-11:50 pm
1 stop7h 45m
$489
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Sat 11/14
7:00 am-2:22 pm
1 stop9h 22m
Santa Rosa Sonoma County
Tue 11/17
6:40 am-7:30 pm
2 stops10h 50m
$492
Cheapest one-way
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Thu 12/24
7:20 am-4:08 pm
2 stops10h 48m
$285
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Sun 10/25
9:45 am-4:08 pm
2 stops8h 23m
$403
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 10/6
9:45 am-4:08 pm
2 stops8h 23m
$403
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Thu 7/2
2:50 pm-4:55 pm
2 stops28h 05m
$484
Quickest one-way
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Sun 7/5
7:07 am-12:03 pm
1 stop6h 56m
$485
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Wed 10/14
9:45 am-4:08 pm
2 stops8h 23m
$615
Sorted by cheapest first
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 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 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 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 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.
STL-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 June 27, 2026.
Get a feel of what it's like to fly with American Airlines from St. Louis to Santa Rosa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.1
Food
6.4
Comfort
7.2
Boarding
7.5
Crew
7.9
Entertainment
6.8
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Overall
7.1
Food
6.4
Comfort
7.2
Boarding
7.5
Crew
7.9
Entertainment
6.8
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - 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.
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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St. Louis and Santa Rosa flights
Browse other St. Louis and Santa Rosa flight options. Last updated on June 27, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on June 27, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to Santa Rosa
Explore flights to Santa Rosa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 27, 2026.
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 June 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$466 | Average$569 | FlexibilityNo cancel fee | On-time71% |