SLC → STL: cancellations & delays
Over Jan 2023 - Apr 2026, 0.4% of Salt Lake City International Airport (SLC) to St. Louis Lambert International Airport (STL) flights were cancelled and 16.6% arrived at least 15 minutes late, across 3,244 flights, flown by DL, WN, OO. Cancellations peak in March.
Check today's live SLC departures →Airport pages: Salt Lake City International Airport (SLC) · 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.