$217+ Cheap flights from St. Louis to Santa Rosa (STL - 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STS
Oct 25 — Nov 11
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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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 September 25, 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 September 25, 2026.
This Southwest deal was found by Cheapflights users on 9/23. 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.
Tue 10/205:20 am -
1 stop7h 45m
Sat 10/243:05 pm -
1 stop5h 50m
Deal found 9/23![Southwest logo]()
$423
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:32 am -
2 stops11h 33m
Mon 1/1112:39 pm -
1 stop7h 02m
Deal found 9/22![Delta logo]()
$428
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:32 am -
2 stops11h 33m
Tue 1/1212:39 pm -
2 stops8h 39m
Deal found 9/22![Delta logo]()
$433
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:32 am -
2 stops11h 33m
Wed 1/612:39 pm -
1 stop7h 02m
Deal found 9/22![Delta logo]()
$447
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:32 am -
2 stops11h 33m
Tue 1/512:39 pm -
2 stops8h 39m
Deal found 9/22![Delta logo]()
$452
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:58 am -
1 stop7h 01m
Tue 12/11:29 pm -
1 stop8h 20m
Deal found 9/20![American Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:32 am -
2 stops11h 33m
Fri 1/812:39 pm -
1 stop7h 02m
Deal found 9/22![Delta logo]()
$466
This Southwest deal was found by Cheapflights users on 9/20. 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.
Tue 11/246:15 am -
2 stops9h 35m
Tue 12/13:00 pm -
1 stop6h 10m
Deal found 9/20![Southwest logo]()
$469
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:32 am -
2 stops11h 33m
Sat 1/912:39 pm -
2 stops8h 39m
Deal found 9/22![Delta logo]()
$472
This Expedia deal was found by Cheapflights users on 9/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:02 am -
1 stop8h 04m
Sun 11/17:20 am -
1 stop14h 39m
Deal found 9/24![Alaska Airlines logo]()
$486
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/293:20 pm -
2 stops10h 00m
Sun 11/13:10 pm -
1 stop7h 40m
Deal found 9/24![Southwest logo]()
$491
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 September 25, 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 September 25, 2026.
This Southwest deal was found by Cheapflights users on 9/20. 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.
Tue 11/246:15 am -
2 stops9h 35m
Tue 12/13:00 pm -
1 stop6h 10m
Deal found 9/20![Southwest logo]()
$469
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/157:03 am -
2 stops11h 02m
Fri 1/1512:39 pm -
1 stop7h 02m
Deal found 9/22![Delta logo]()
$486
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Wed 12/166:00 am -
2 stops11h 56m
Sun 12/201:19 pm -
1 stop8h 34m
Deal found 9/24![American Airlines logo]()
$491
This Alaska Airlines deal was found by Cheapflights users on 9/24. 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.
Tue 11/176:00 am -
1 stop8h 18m
Wed 11/1811:30 am -
1 stop7h 12m
Deal found 9/24![Alaska Airlines logo]()
$523
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:30 pm -
2 stops10h 50m
Sun 11/16:05 am -
2 stops11h 10m
Deal found 9/24![Southwest logo]()
$496
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:03 am -
2 stops12h 02m
Tue 1/1212:39 pm -
1 stop7h 02m
Deal found 9/22![Delta logo]()
$518
Last-minute flights from St. Louis to Santa RosaDiscover last-minute flight deals from St. Louis to Santa Rosa. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Santa Rosa. Data last updated September 25, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/22. 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.
Sun 10/47:02 am -
2 stops17h 58m
Sun 10/253:32 pm -
2 stops30h 27m
Deal found 9/22![Alaska Airlines logo]()
$848
This Alaska Airlines deal was found by Cheapflights users on 9/20. 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.
Mon 10/57:02 am -
1 stop8h 04m
Fri 10/98:05 pm -
2 stops25h 54m
Deal found 9/20![Alaska Airlines logo]()
$766
This Southwest deal was found by Cheapflights users on 9/20. 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.
Mon 10/57:50 am -
1 stop10h 25m
Fri 10/93:10 pm -
1 stop6h 45m
Deal found 9/20![Southwest logo]()
$841
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/87:02 am -
1 stop8h 04m
Mon 10/128:05 pm -
2 stops25h 54m
Deal found 9/23![Alaska Airlines logo]()
$711
This Southwest deal was found by Cheapflights users on 9/23. 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.
Tue 10/205:20 am -
1 stop7h 45m
Sat 10/243:05 pm -
1 stop5h 50m
Deal found 9/23![Southwest logo]()
$423
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:45 pm -
2 stops8h 15m
Sat 10/3110:35 am -
1 stop5h 45m
Deal found 9/24![Southwest logo]()
$428
This Expedia deal was found by Cheapflights users on 9/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:02 am -
1 stop8h 04m
Sun 11/17:20 am -
1 stop14h 39m
Deal found 9/24![Alaska Airlines logo]()
$486
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/293:20 pm -
2 stops10h 00m
Sun 11/13:10 pm -
1 stop7h 40m
Deal found 9/24![Southwest logo]()
$491
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 September 25, 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 September 25, 2026.
This Southwest deal was found by Cheapflights users on 9/21. 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.
Thu 11/55:40 am -
2 stops10h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 9/21. 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.
Thu 12/245:05 am -
1 stop9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Southwest logo]()
$231
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:45 am -
2 stops8h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Delta logo]()
$258
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:48 pm -
2 stops11h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:08 am -
2 stops10h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:03 am -
2 stops11h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Delta logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 9/20. 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.
Sat 11/286:00 am -
1 stop8h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Alaska Airlines logo]()
$545
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:45 am -
2 stops8h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$555
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Mon 12/286:56 pm -
2 stops30h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![American Airlines logo]()
$584
This Delta deal was found by Cheapflights users on 9/20. 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.
Sun 11/89:47 am -
2 stops8h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Delta logo]()
$585
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 September 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $423 (Southwest) |
One-way from | $217 (Southwest) |
Popular in | March |
Cheapest in | January |
Average price | $521 |
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 7,457,451 searches. Data last updated September 25, 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 Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Thu 11/5
5:40 am-2:35 pm
2 stops10h 55m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$217
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Mon 12/7
7:03 am-4:05 pm
2 stops11h 02m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$217
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Thu 12/24
5:05 am-12:15 pm
1 stop9h 10m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$231
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Fri 12/25
5:05 am-12:15 pm
1 stop9h 10m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$231
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Fri 12/25
8:26 am-3:57 pm
2 stops9h 31m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$236
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Sat 11/21
7:08 am-4:06 pm
2 stops10h 58m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$328
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Tue 12/1
7:03 am-4:05 pm
2 stops11h 02m
Santa Rosa Sonoma County
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$455
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Tue 11/24
6:15 am-1:50 pm
2 stops9h 35m
Santa Rosa Sonoma County
Tue 12/1
3:00 pm-11:10 pm
1 stop6h 10m
$469
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Tue 12/15
7:03 am-4:05 pm
2 stops11h 02m
Santa Rosa Sonoma County
Fri 1/15
12:39 pm-9:41 pm
1 stop7h 02m
$486
St. LouisSanta Rosa
STL Lambert-St Louis - STS Santa Rosa Sonoma County
STLSTS
Lambert-St Louis
Wed 12/16
6:00 am-3:56 pm
2 stops11h 56m
Santa Rosa Sonoma County
Sun 12/20
1:19 pm-11:53 pm
1 stop8h 34m
$491
Showing 1-10 of 18 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 September.
| 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.
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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