Historical on-time performance
Kansas City to Boston
1,256 miData through Dec 2025Source: US DOT · BTS
Flights on MCI–BOS arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights
based on 489 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time80%Medianon timep9030 minCancel2.0%Flights351
- Delta Air LinesOn-time54%Median5 minp90125 minCancel2.9%Flights138
Why flights run late
Delay causes
- Airline39%
- Weather4%
- Air traffic (NAS)19%
- Late aircraft38%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MCI → 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 69% to 83% on time.
- Mornings83% on time · p90 25 min · 598 flights
- Afternoons80% on time · p90 45 min · 229 flights
- Middays78% on time · p90 45 min · 629 flights
- Evenings69% on time · p90 80 min · 659 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 81% on time.
- Wednesdays81% on time · p90 30 min · 312 flights
- Tuesdays79% on time · p90 50 min · 314 flights
- Saturdays79% on time · p90 45 min · 230 flights
- Thursdays77% on time · p90 60 min · 315 flights
- Sundays76% on time · p90 55 min · 313 flights
- Mondays75% on time · p90 75 min · 318 flights
- Fridays74% on time · p90 50 min · 313 flights
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