MCI (Kansas City) to BOS (Boston) flights arrive on time 80% of the time. The most reliable airline on this route is Republic Airways at 83%. The average delay is 92 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.MCI → BOS
MCI (Kansas City) to BOS (Boston)
MCI → BOS on-time performance by month
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This route is on time most of the time. About 80% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Republic Airways edges out Spirit Airlines on this route — 83% vs 75% on time.
Airline Comparison
Republic Airways leads at 83% on time; Spirit Airlines trails at 75%.
Accurate?
Good to know
Departing from MCI
80% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. MCI has long runway queues.
TSA is currently ~27 min. Best time: 4 AM (about 5 min).
Arriving at BOS
77% on timeWhen flights into BOS are late, the average delay is 74 minutes. Build buffer if you have ground plans.
If connecting at BOS: TSA is ~22 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Republic Airways owes you — refund rights, action plan, complaint email. Free.
Flying out of MCI? 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 August 2026. Source: Bureau of Transportation Statistics.