$199+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STS
Jun 14 — Jun 211
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
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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 May 15, 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 May 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/12. 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 9/156:00 am
STL
- STS
1 stop8h 46m
Alaska Airlines
Wed 9/168:07 am
STS
- STL
1 stop6h 56m
Alaska Airlines
Deal found 5/12![Alaska Airlines logo]()
$445
This Orbitz deal was found by Cheapflights users on 5/14. 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.
Thu 9/175:59 pm
STL
- STS
1 stop7h 20m
Alaska Airlines
Wed 9/235:31 pm
STS
- STL
1 stop18h 50m
Alaska Airlines
Deal found 5/14![Alaska Airlines logo]()
$461
This Southwest deal was found by Cheapflights users on 5/14. 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 9/176:00 am
STL
- STS
2 stops10h 20m
Southwest
Wed 9/231:40 pm
STS
- STL
1 stop7h 05m
Southwest
Deal found 5/14![Southwest logo]()
$466
This Southwest deal was found by Cheapflights users on 5/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:55 pm
STL
- STS
2 stops10h 05m
Southwest
Mon 10/192:30 pm
STS
- STL
2 stops8h 05m
Southwest
Deal found 5/10![Southwest logo]()
$508
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:05 am
STL
- STS
1 stop9h 42m
American Airlines
Mon 10/194:20 pm
STS
- STL
1 stop5h 57m
American Airlines
Deal found 5/10![American Airlines logo]()
$514
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Fri 6/197:04 am
STL
- STS
1 stop7h 01m
American Airlines
Mon 6/221:09 pm
STS
- STL
1 stop8h 48m
American Airlines
Deal found 5/14![American Airlines logo]()
$519
This Southwest deal was found by Cheapflights users on 5/14. 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.
Fri 6/194:00 pm
STL
- STS
2 stops9h 30m
Southwest
Mon 6/223:55 pm
STS
- STL
1 stop8h 00m
Southwest
Deal found 5/14![Southwest logo]()
$524
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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.
Tue 6/95:33 pm
STL
- STS
1 stop7h 57m
Alaska Airlines
Sat 6/137:00 am
STS
- STL
1 stop7h 37m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$536
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Mon 7/65:29 am
STL
- STS
1 stop8h 34m
American Airlines
Fri 7/101:00 pm
STS
- STL
1 stop8h 59m
American Airlines
Deal found 5/14![American Airlines logo]()
$538
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 May 15, 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 May 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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 9/156:00 am
STL
- STS
1 stop8h 46m
Alaska Airlines
Wed 9/168:07 am
STS
- STL
1 stop6h 56m
Alaska Airlines
Deal found 5/14![Alaska Airlines logo]()
$445
This Southwest deal was found by Cheapflights users on 5/14. 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 9/176:00 am
STL
- STS
2 stops10h 20m
Southwest
Wed 9/231:40 pm
STS
- STL
1 stop7h 05m
Southwest
Deal found 5/14![Southwest logo]()
$466
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Mon 7/65:29 am
STL
- STS
1 stop8h 34m
American Airlines
Fri 7/101:00 pm
STS
- STL
2 stops8h 58m
American Airlines
Deal found 5/14![American Airlines logo]()
$543
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 8/253:00 pm
STL
- STS
1 stop8h 56m
Alaska Airlines
Wed 8/268:07 am
STS
- STL
1 stop6h 56m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$445
This Southwest deal was found by Cheapflights users on 5/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:55 pm
STL
- STS
2 stops10h 05m
Southwest
Mon 10/192:30 pm
STS
- STL
2 stops8h 05m
Southwest
Deal found 5/10![Southwest logo]()
$508
This Southwest deal was found by Cheapflights users on 5/14. 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.
Fri 6/194:00 pm
STL
- STS
2 stops9h 30m
Southwest
Mon 6/223:55 pm
STS
- STL
1 stop8h 00m
Southwest
Deal found 5/14![Southwest logo]()
$524
This Southwest deal was found by Cheapflights users on 5/14. 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.
Mon 7/64:00 pm
STL
- STS
2 stops9h 30m
Southwest
Fri 7/106:00 am
STS
- STL
2 stops10h 30m
Southwest
Deal found 5/14![Southwest logo]()
$545
This Southwest deal was found by Cheapflights users on 5/14. 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 6/114:00 pm
STL
- STS
2 stops9h 30m
Southwest
Wed 6/172:15 pm
STS
- STL
1 stop5h 35m
Southwest
Deal found 5/14![Southwest logo]()
$547
Last-minute flights from St. Louis to Santa RosaDiscover last-minute flight deals from St. Louis to Santa Rosa. Data last updated May 15, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Santa Rosa. Data last updated May 15, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:29 am
STL
- STS
1 stop8h 36m
American Airlines
Tue 6/161:09 pm
STS
- STL
2 stops8h 50m
American Airlines
Deal found 5/10![American Airlines logo]()
$566
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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.
Tue 6/95:33 pm
STL
- STS
1 stop7h 57m
Alaska Airlines
Sat 6/137:00 am
STS
- STL
1 stop7h 37m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$536
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:29 am
STL
- STS
1 stop8h 36m
American Airlines
Tue 6/161:09 pm
STS
- STL
2 stops8h 50m
American Airlines
Deal found 5/10![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:04 am
STL
- STS
1 stop7h 01m
American Airlines
Wed 6/1712:45 pm
STS
- STL
1 stop9h 14m
American Airlines
Deal found 5/10![American Airlines logo]()
$582
This Southwest deal was found by Cheapflights users on 5/14. 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 6/114:00 pm
STL
- STS
2 stops9h 30m
Southwest
Wed 6/172:15 pm
STS
- STL
1 stop5h 35m
Southwest
Deal found 5/14![Southwest logo]()
$547
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Fri 6/197:04 am
STL
- STS
1 stop7h 01m
American Airlines
Mon 6/221:09 pm
STS
- STL
1 stop8h 48m
American Airlines
Deal found 5/14![American Airlines logo]()
$519
This Southwest deal was found by Cheapflights users on 5/14. 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.
Fri 6/194:00 pm
STL
- STS
2 stops9h 30m
Southwest
Mon 6/223:55 pm
STS
- STL
1 stop8h 00m
Southwest
Deal found 5/14![Southwest logo]()
$524
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 May 15, 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 May 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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.
Tue 6/95:33 pm
STL
- STS
1 stop7h 57m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$199
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:29 am
STL
- STS
2 stops9h 10m
American Airlines
Deal found 5/10![American Airlines logo]()
$228
This American Airlines deal was found by Cheapflights users on 5/13. 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 7/57:06 am
STL
- STS
1 stop6h 57m
American Airlines
Deal found 5/13![American Airlines logo]()
$260
This Southwest deal was found by Cheapflights users on 5/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:45 am
STL
- STS
2 stops8h 50m
Southwest
Deal found 5/10![Southwest logo]()
$265
This Alaska Airlines deal was found by Cheapflights users on 5/12. 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 6/15:33 pm
STL
- STS
1 stop7h 57m
Alaska Airlines
Deal found 5/12![Alaska Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:52 pm
STL
- STS
3 stops45h 34m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$516
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:57 pm
STL
- STS
3 stops22h 01m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$565
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 May 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $445 (Alaska Airlines) |
One-way from | $199 (Alaska Airlines) |
Popular in | September |
Cheapest in | April |
Average price | $466 |
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 May 15, 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
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 9/15
6:00 am-12:46 pm
1 stop8h 46m
Santa Rosa Sonoma County
Wed 9/16
8:07 am-5:03 pm
1 stop6h 56m
$445
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 8/25
3:00 pm-9:56 pm
1 stop8h 56m
Santa Rosa Sonoma County
Wed 8/26
8:07 am-5:03 pm
1 stop6h 56m
$445
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Thu 9/17
6:00 am-2:20 pm
2 stops10h 20m
Santa Rosa Sonoma County
Wed 9/23
1:40 pm-10:45 pm
1 stop7h 05m
$466
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Fri 10/16
2:55 pm-11:00 pm
2 stops10h 05m
Santa Rosa Sonoma County
Mon 10/19
2:30 pm-12:35 am
2 stops8h 05m
$508
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Fri 6/19
4:00 pm-11:30 pm
2 stops9h 30m
Santa Rosa Sonoma County
Mon 6/22
3:55 pm-1:55 am
1 stop8h 00m
$524
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Mon 7/6
5:29 am-12:03 pm
1 stop8h 34m
Santa Rosa Sonoma County
Fri 7/10
1:00 pm-11:58 pm
2 stops8h 58m
$543
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Mon 7/6
4:00 pm-11:30 pm
2 stops9h 30m
Santa Rosa Sonoma County
Fri 7/10
6:00 am-6:30 pm
2 stops10h 30m
$545
Quickest round-trip
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Thu 6/11
4:00 pm-11:30 pm
2 stops9h 30m
Santa Rosa Sonoma County
Wed 6/17
2:15 pm-9:50 pm
1 stop5h 35m
$547
Cheapest one-way
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 6/9
5:33 pm-11:30 pm
1 stop7h 57m
$199
St. LouisSanta Rosa
STL - STS
STLSTS
Lambert-St Louis
Tue 6/9
5:29 am-12:39 pm
2 stops9h 10m
$228
Showing 1-10 of 16 resultsSorted 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 May.
| 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.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Santa Rosa
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 May 15, 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.
Entertainment
6.9
Overall
7.1
Food
6.4
Comfort
7.2
Crew
7.9
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Entertainment
6.9
Overall
7.1
Food
6.4
Comfort
7.2
Crew
7.9
Boarding
7.5
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 May 15, 2026.
Other flights from St. Louis
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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 May 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$466 | Average$573 | FlexibilityNo cancel fee | On-time71% |