Flights operate between St Louis (STL) and Des Moines (DSM).
1 airline operates this route with 1-3 flights daily flights.
Average flight time is 1h 05m - 1h 10m.
Route distance is 260 miles (418 km).
Route Distance
260 miles (418 km)
Average Duration
1h 05m - 1h 10m
Airlines Operating This Route
Southwest Airlines
Flight Frequency
Daily Flights
1-3 flights
Weekly Flights
14
Typical Departure Time Ranges
Earliest Departure
09:50
Latest Departure
22:55
Route Intelligence Dashboard
Overall Connectivity Score
60
GoodRoute Diversity
1
Direct Routes
Southwest Airlines serves 1 destination from STL
Weekly Frequency
14
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| STL → Des Moines (DSM) (DSM) | 14/week | 1h 05m - 1h 10m | 260 km | Moderate |
Flight Schedule & Filters
Southwest Airlines flights from Saint Louis (STL) to Des Moines (DSM)
Southwest Airlines operates scheduled nonstop flights between Saint Louis (STL) and Des Moines (DSM). Southwest Airlines operates 1-3 flights daily flights on this route.• Flight Duration: 1h 05m - 1h 10m (average flight time)• Distance: 260 miles (418 km) (air miles between airports)• Daily Flights: 1-3 flights (scheduled departures per day)
Saint Louis (STL)
US
Des Moines (DSM)
US
FLIGHT TIME
1h 05m - 1h 10m
FLIGHT DISTANCE
260 miles (418 km)
1h 10m - 1h 10m
09:50
22:55
260 miles (418 km)
March
1 (Show)
14
Southwest Airlines Terminal Information & Contact
Departure Terminal - Saint Louis (STL)
Terminal: 2
Phone: 800-435-9792
Location: 2, St Louis, US
Arrival Terminal - Des Moines (DSM)
Terminal: 1
Phone: 800-435-9792
Location: 1, Des Moines, US
Southwest Airlines Flight Schedule from Saint Louis (STL) to Des Moines (DSM)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN2040 |  Southwest Airlines | 09:50 | 11:00:00 | Boeing 737MAX 8 Passenger |
WN146 | Southwest Airlines | 22:55 | 00:05:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
Southwest Airlines Monthly Flight Calendar
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Southwest Airlines Terminal Information
Departure Terminal at Saint Louis (STL):
• Terminal : Southwest Airlines operates from this terminal
Terminal 2:
• Southwest Airlines Terminal Phone: 800-435-9792
Arrival Terminal at Des Moines (DSM):
• Terminal : Southwest Airlines operates from this terminal
Terminal 1:
• Southwest Airlines Terminal Phone: 800-435-9792
Weather & Climate at Des Moines (DSM)
11.9°C
Avg Temperature55mm
Avg Rainfall13.6km/h
Avg Wind Speed66%
Avg HumidityBest Months to Visit
Challenging Months
12-Month Weather Overview
Wind Speed by Month
Humidity by Month
Best Time to Book Flights to Des Moines (DSM)
Best Booking Window
Book 2-3 months in advance for best prices
Booking Tip
Avoid booking during extreme weather months for better deals
Recommended Months
These months offer the best balance of weather, prices, and availability.
Monthly Booking Recommendations
Flight Price Trends for Des Moines (DSM)
Cheapest Months to Fly
Book flights during these months for the best deals and lowest prices.
Price Trend Analysis
Prices are typically lower during shoulder seasons
Monthly Price Trends
Best Months to Fly Southwest Airlines to Des Moines (DSM)
Best Months
Optimal conditions for travel with favorable weather, prices, and availability.
Shoulder Season
Transition periods with moderate conditions. Good balance of price and experience.
Seasonal Insight
Best travel months: 2025-05, 2025-06, 2025-09
Seasonal Travel Calendar
Southwest Airlines Contact Information and Customer Services
Southwest Airlines Address
2702 Love Field Dr
Dallas, TX 75235, US
Customer Service Phone
800-435-9792Official Website
southwest.com/Frequently Asked Questions
How many Southwest Airlines flights operate from St Louis (STL) to Des Moines (DSM)?
Southwest Airlines operates 2 flights from St Louis (STL) to Des Moines (DSM).
What city does Des Moines (DSM) airport serve?
Des Moines (DSM) airport serves Des Moines, US.
How long is the Southwest Airlines flight from St Louis (STL) to Des Moines (DSM)?
The flight duration is approximately 1h 05m - 1h 10m.
What is the distance from St Louis (STL) to Des Moines (DSM)?
The distance is 260 miles (418 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737MAX 8 Passenger, Boeing 737-800 (winglets) Passenger/BBJ2 on this route.
What are the earliest and latest Southwest Airlines flight departure times?
The earliest Southwest Airlines flight departs at 09:50 and the latest departs at 22:55.
Which terminal does Southwest Airlines use at St Louis (STL)?
Southwest Airlines flights from St Louis (STL) depart from Terminal 2. Terminal 2 phone: 800-435-9792.
View all Southwest Airlines flights to St Louis (STL) →
Popular Southwest Airlines routes from St Louis include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.