IAD → CMH: cancellations & delays
Over Jan 2023 - Apr 2026, 1.2% of Washington Dulles International Airport (IAD) to John Glenn Columbus International Airport (CMH) flights were cancelled and 15.8% arrived at least 15 minutes late, across 2,884 flights, flown by YX, UA. Cancellations peak in July.
Check today's live IAD departures →Airport pages: Washington Dulles International Airport (IAD) · John Glenn Columbus International Airport (CMH)
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.