Southwest® flights from Santa Rosa to St. Louis from $216

Promo Code

Low fares from Santa Rosa to St. Louis

$

Santa Rosa (STS)to

St. Louis (STL)
Depart: 04/09/2026

One-way

Basic

From
$216

Low fares from Santa Rosa to St. Louis

$

Santa Rosa (STS)to

St. Louis (STL)
Depart: 04/09/2026

One-way

Basic

From
$216
Seen: 4 hrs ago

Santa Rosa (STS)to

St. Louis (STL)
Depart: 04/09/2026

One-way

Choice

From
$256
Seen: 4 hrs ago

Santa Rosa (STS)to

St. Louis (STL)
Depart: 04/09/2026

One-way

Choice Preferred

From
$336
Seen: 4 hrs ago

Santa Rosa (STS)to

St. Louis (STL)
Depart: 04/09/2026

One-way

Choice Extra

From
$396
Seen: 4 hrs ago
Two happy travelers riding a scooter at sunset, promoting low-fare flights.

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Santa Rosa to St. Louis

Flight Details

Departing from:
Charles M. Schulz–Sonoma County Airport
Arriving at:
Lambert-St Louis Int'l Airport
Distance:
1746 miles

Route Information

31 Weekly flights

† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

Questions we hear the most

There are 31 weekly flights from Santa Rosa to St. Louis on Southwest Airlines.
To find the lowest fares by day and time to fly Santa Rosa to St. Louis with Southwest, check out our Low Fare Calendar.
You can rent a car at Lambert-St Louis Int'l Airport book yours with your flight.
Yes! Flights from Santa Rosa to St. Louis—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.

Popular Flights from Santa Rosa