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Find low faresSouthwest® flights from Sacramento to St. Louis from $135
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Low fares from Sacramento to St. Louis
$
Sacramento (SMF)to
St. Louis (STL)
Depart: 04/04/2026
One-way
Basic
From
$135
Seen: 14 hrs ago
Sacramento (SMF)to
St. Louis (STL)
Depart: 02/21/2026
One-way
Basic
From
$156
Seen: 17 hrs ago
Sacramento (SMF)to
St. Louis (STL)
Depart: 05/09/2026
One-way
Basic
From
$156
Seen: 11 hrs ago
Sacramento (SMF)to
St. Louis (STL)
Depart: 03/02/2026
One-way
Basic
From
$158
Seen: 21 hrs ago
Sacramento (SMF)to
St. Louis (STL)
Depart: 03/15/2026
One-way
Basic
From
$163
Seen: 19 hrs ago
Sacramento (SMF)to
St. Louis (STL)
Depart: 05/06/2026
One-way
Basic
From
$163
Seen: 11 hrs ago
Explore flights from Sacramento to St. Louis
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Flight Details
Departing from:
Sacramento International Airport
Arriving at:
Lambert-St Louis Int'l Airport
Average flight time:
3 hours 40 minutes
Distance:
1679 miles
Route Information
156† Weekly flights
- 1‡ Nonstop flight per day Monday through Friday
- 1‡ Nonstop flight on Saturday
- 1‡ Nonstop flight on Sunday
† 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
The average flight time from Sacramento to St. Louis is 3 hours 40 minutes.
There are 156 weekly flights from Sacramento to St. Louis on Southwest Airlines.
Yes, Southwest flies nonstop from Sacramento to St. Louis once per day from Monday through Friday.
Yes, Southwest flies nonstop from Sacramento to St. Louis once per day on Saturdays and Sundays.
To find the lowest fares by day and time to fly Sacramento 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 Sacramento 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.