Historical on-time performance
Milwaukee to Boston
860 miData through Dec 2025Source: US DOT · BTS
Flights on MKE–BOS arrive on time 66% of the time over the last 12 months.
On-time rate66%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights
based on 648 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time69%Medianon timep9065 minCancel2.7%Flights524
- JetBlue AirwaysOn-time51%Median10 minp9095 minCancel0.8%Flights124
Why flights run late
Delay causes
- Airline25%
- Weather4%
- Air traffic (NAS)45%
- Late aircraft25%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MKE → BOS
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 60% to 82% on time.
- Mornings82% on time · p90 30 min · 386 flights
- Middays78% on time · p90 45 min · 816 flights
- Evenings73% on time · p90 60 min · 1,047 flights
- Afternoons60% on time · p90 90 min · 319 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 80% on time.
- Saturdays80% on time · p90 30 min · 277 flights
- Tuesdays78% on time · p90 40 min · 378 flights
- Wednesdays78% on time · p90 40 min · 379 flights
- Sundays73% on time · p90 75 min · 379 flights
- Thursdays72% on time · p90 60 min · 383 flights
- Fridays71% on time · p90 85 min · 383 flights
- Mondays70% on time · p90 80 min · 389 flights
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