IAD (Washington) to CMH (Columbus) flights arrive on time 85% of the time. The most reliable airline on this route is United Airlines at 87%. The average delay is 74 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated October 2026.IAD → CMH
IAD (Washington) to CMH (Columbus)
IAD → CMH on-time performance by month
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This route is on time most of the time. About 85% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Airlines are roughly equal on this route — United Airlines leads slightly at 87% vs Republic Airways at 85%.
Airline Comparison
United Airlines leads at 87% on time; Republic Airways trails at 85%.
Accurate?
Good to know
Departing from IAD
82% on timeExpect ~20 min sitting on the taxiway after your gate pushes back. IAD has long runway queues.
TSA is currently ~12 min. Best time: 4 AM (about 5 min).
Arriving at CMH
81% on timeWhen flights into CMH are late, the average delay is 69 minutes. Build buffer if you have ground plans.
If connecting at CMH: TSA is ~30 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what United Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of IAD? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated October 2026. Source: Bureau of Transportation Statistics.