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Find low faresSouthwest® flights from Hartford/Springfield to St. Louis from $149
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1 Passenger
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Low fares from Hartford/Springfield to St. Louis
$
Hartford/Springfield (BDL)to
St. Louis (STL)
Depart: 03/16/2026
One-way
Basic
From
$149
Seen: 21 minutes ago
Hartford/Springfield (BDL)to
St. Louis (STL)
Depart: 03/10/2026
One-way
Basic
From
$149
Seen: 3 hrs ago
Hartford/Springfield (BDL)to
St. Louis (STL)
Depart: 03/25/2026
One-way
Basic
From
$149
Seen: 2 hrs ago
Hartford/Springfield (BDL)to
St. Louis (STL)
Depart: 02/28/2026
One-way
Basic
From
$159
Seen: 16 hrs ago
Hartford/Springfield (BDL)to
St. Louis (STL)
Depart: 02/21/2026
One-way
Basic
From
$159
Seen: 21 hrs ago
Hartford/Springfield (BDL)to
St. Louis (STL)
Depart: 02/23/2026
One-way
Basic
From
$171
Seen: 17 hrs ago
Explore flights from Hartford/Springfield to St. Louis
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Flight Details
Departing from:
Bradley International Airport
Arriving at:
Lambert-St Louis Int'l Airport
Distance:
957 miles
Route Information
128† 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 128 weekly flights from Hartford/Springfield to St. Louis on Southwest Airlines.
To find the lowest fares by day and time to fly Hartford/Springfield 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 Hartford/Springfield 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.