STL → EWR: cancellations & delays
Over Jan 2023 - Apr 2026, 3.6% of St. Louis Lambert International Airport (STL) to Newark Liberty International Airport (EWR) flights were cancelled and 20.0% arrived at least 15 minutes late, across 3,073 flights, flown by YX, UA. Cancellations peak in July.
Check today's live STL departures →Airport pages: St. Louis Lambert International Airport (STL) · Newark Liberty International Airport (EWR)
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.