MKE (Milwaukee) to BOS (Boston) flights arrive on time 74% of the time. The most reliable airline on this route is Republic Airways at 78%. The average delay is 72 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated August 2026.MKE → BOS
MKE (Milwaukee) to BOS (Boston)
MKE → BOS on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is delayed fairly often. About 74% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
Accurate?
Republic Airways is significantly more reliable on this route at 78% on time vs Delta Air Lines at 63%.
Airline Comparison
Republic Airways leads at 78% on time; Delta Air Lines trails at 63%.
Accurate?
Good to know
Departing from MKE
79% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. MKE has long runway queues.
TSA is currently ~5 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 ~5 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 MKE? 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.