ATL → STL: cancellations & delays
Over Jan 2023 - Apr 2026, 1.0% of Hartsfield Jackson Atlanta International Airport (ATL) to St. Louis Lambert International Airport (STL) flights were cancelled and 18.5% arrived at least 15 minutes late, across 11,618 flights, flown by DL, WN, F9. Cancellations peak in January.
Check today's live ATL departures →Airport pages: Hartsfield Jackson Atlanta International Airport (ATL) · 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.