DSM → STL: cancellations & delays
Over Jan 2023 - Apr 2026, 0.8% of Des Moines International Airport (DSM) to St. Louis Lambert International Airport (STL) flights were cancelled and 14.1% arrived at least 15 minutes late, across 2,144 flights, flown by WN. Cancellations peak in January.
Check today's live DSM departures →Airport pages: Des Moines International Airport (DSM) · St. Louis Lambert International Airport (STL)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.