St Louis (STL) to Des Moines (DSM) flights
There were no regular nonstop flights from STL to DSM in July 2026; the route was flown 403 times in the previous 12 months. The 259-mile flight takes about 1h 2m gate to gate.
- Distance
- 259 mi · 417 km
- Flight time
- 1h 2m
- Airlines
- 1
- Seats filled
- 62%
Airlines flying STL to DSM
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest AirlinesSeasonal or ended | n/a | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 40,522 | 1h 2m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
Is STL to DSM on time?
From September 2025 to August 2026, 82% of 347 flights arrived within 15 minutes of schedule and 0.6% were cancelled. Flights leaving around 10am were the most punctual (94%), those around 8pm the least (72%). Most delay time was caused by late-arriving aircraft (62%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 347 | 82% | 9 min | 0.6% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 9am to 10am | 74 | 90% | |
| 10am to 11am | 84 | 94% | |
| 1pm to 2pm | 19 | 74% | |
| 8pm to 9pm | 60 | 72% | |
| 9pm to 10pm | 36 | 74% | |
| 10pm to 11pm | 66 | 72% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 56 | 6,447 | |
| September 2025 | 56 | 5,675 | |
| October 2025 | 57 | 5,879 | |
| November 2025 | 55 | 5,239 | |
| December 2025 | 62 | 6,005 | |
| January 2026 | 58 | 5,444 | |
| February 2026 | 52 | 4,940 | |
| March 2026 | 8 | 912 | |
| April 2026 | 2 | 49 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.