DCA → STL: cancellations & delays
Over Jan 2023 - Apr 2026, 2.0% of Ronald Reagan Washington National Airport (DCA) to St. Louis Lambert International Airport (STL) flights were cancelled and 21.6% arrived at least 15 minutes late, across 7,780 flights, flown by WN, OH, AA, YX, MQ. Cancellations peak in January.
Check today's live DCA departures →Airport pages: Ronald Reagan Washington National Airport (DCA) · 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.