IAD (Washington) to MCI (Kansas City) flights arrive on time 79% of the time. The most reliable airline on this route is United Airlines at 85%. The average delay is 75 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated July 2026.IAD → MCI
IAD (Washington) to MCI (Kansas City)
IAD → MCI on-time performance by month
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is on time most of the time. About 79% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
United Airlines edges out Republic Airways on this route — 85% vs 73% on time.
Airline Comparison
United Airlines leads at 85% on time; Republic Airways trails at 73%.
Accurate?
Good to know
Departing from IAD
82% on timeExpect ~21 min sitting on the taxiway after your gate pushes back. IAD has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at MCI
80% on timeWhen flights into MCI are late, the average delay is 68 minutes. Build buffer if you have ground plans.
If connecting at MCI: TSA is ~6 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.
We'll keep an eye on your flight
Delays, TSA, weather, gates — we'll let you know if something matters.
Delay odds & gate info
TSA wait & weather
48-hour conditions check
When-to-leave timeline
Post-landing trip report
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated July 2026. Source: Bureau of Transportation Statistics.