OnTimeStats

Historical on-time performance

Cincinnati to Miami

948 miData through Dec 2025Source: US DOT · BTS

Flights on CVG–MIA arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights

based on 877 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Envoy Air
    On-time76%
    Medianon time
    p9040 min
    Cancel1.1%
    Flights831
  • Frontier Airlines
    On-time83%
    Medianon time
    p9055 min
    Cancel4.3%
    Flights46

Why flights run late

Delay causes

  • Airline35%
  • Weather10%
  • Air traffic (NAS)19%
  • Late aircraft36%
  • 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 CVG → MIA

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 65% to 85% on time.

  • Mornings85% on time · p90 20 min · 1,713 flights
  • Overnights78% on time · p90 70 min · 63 flights · limited
  • Middays72% on time · p90 60 min · 251 flights
  • Afternoons65% on time · p90 60 min · 52 flights · limited
  • Evenings65% on time · p90 75 min · 1,205 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 83% on time.

  • Tuesdays83% on time · p90 20 min · 433 flights
  • Wednesdays79% on time · p90 35 min · 419 flights
  • Mondays77% on time · p90 55 min · 474 flights
  • Fridays76% on time · p90 50 min · 486 flights
  • Thursdays75% on time · p90 50 min · 481 flights
  • Saturdays75% on time · p90 50 min · 480 flights
  • Sundays69% on time · p90 75 min · 511 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.