OnTimeStats

Historical on-time performance

Miami to Kansas City

1,251 miData through Dec 2025Source: US DOT · BTS

Flights on MIA–MCI arrive on time 64% of the time over the last 12 months.

On-time rate64%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled2.0%of scheduled flights

based on 405 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Envoy Airbest
    On-time76%
    Medianon time
    p9030 min
    Cancel3.0%
    Flights66
  • American Airlines
    On-time62%
    Medianon time
    p9090 min
    Cancel1.8%
    Flights339

Why flights run late

Delay causes

  • Airline40%
  • Weather5%
  • Air traffic (NAS)13%
  • Late aircraft42%
  • Security1%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly MIA → MCI

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 62% to 70% on time.

  • Evenings70% on time · p90 55 min · 92 flights · limited
  • Afternoons67% on time · p90 80 min · 107 flights · limited
  • Middays64% on time · p90 55 min · 61 flights · limited
  • Overnights62% on time · p90 70 min · 1,121 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 57% to 71% on time.

  • Fridays71% on time · p90 55 min · 200 flights
  • Tuesdays69% on time · p90 55 min · 200 flights
  • Wednesdays68% on time · p90 75 min · 189 flights · limited
  • Saturdays64% on time · p90 60 min · 222 flights
  • Thursdays61% on time · p90 95 min · 201 flights
  • Sundays59% on time · p90 80 min · 207 flights
  • Mondays57% on time · p90 60 min · 208 flights
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Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.