STL → MCI: cancellations & delays
Over Jan 2023 - Apr 2026, 0.7% of St. Louis Lambert International Airport (STL) to Kansas City International Airport (MCI) flights were cancelled and 22.7% arrived at least 15 minutes late, across 3,536 flights, flown by WN. Cancellations peak in January.
Check today's live STL departures →Airport pages: St. Louis Lambert International Airport (STL) · Kansas City International Airport (MCI)
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.