PHL → STL: cancellations & delays
Over Jan 2023 - Apr 2026, 1.5% of Philadelphia International Airport (PHL) to St. Louis Lambert International Airport (STL) flights were cancelled and 22.3% arrived at least 15 minutes late, across 4,773 flights, flown by WN, AA, OH, YX, F9. Cancellations peak in January.
Check today's live PHL departures →Airport pages: Philadelphia International Airport (PHL) · 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.