CMH → IAD: cancellations & delays
Over Jan 2023 - Apr 2026, 1.2% of John Glenn Columbus International Airport (CMH) to Washington Dulles International Airport (IAD) flights were cancelled and 12.3% arrived at least 15 minutes late, across 2,897 flights, flown by YX, UA. Cancellations peak in July.
Check today's live CMH departures →Airport pages: John Glenn Columbus International Airport (CMH) · Washington Dulles International Airport (IAD)
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.