OnTimeStats

Historical on-time performance

Wilmington to Miami

601 miData through Dec 2025Source: US DOT · BTS

Flights on ILM–MIA arrive on time 89% of the time over the last 12 months.

On-time rate89%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights

based on 184 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-time89%
    Medianon time
    p9015 min
    Cancel0.8%
    Flights123
  • American Airlines
    On-time89%
    Medianon time
    p90on time
    Cancel1.6%
    Flights61

Why flights run late

Delay causes

  • Airline53%
  • Weather0%
  • Air traffic (NAS)13%
  • Late aircraft34%
  • 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 ILM → MIA

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best day of week

On-time rates are fairly even by day on this route — ranging from 82% to 93% on time.

  • Tuesdays93% on time · p90 on time · 71 flights · limited
  • Thursdays93% on time · p90 on time · 71 flights · limited
  • Wednesdays92% on time · p90 5 min · 71 flights · limited
  • Mondays87% on time · p90 15 min · 71 flights · limited
  • Sundays86% on time · p90 20 min · 71 flights · limited
  • Fridays86% on time · p90 30 min · 71 flights · limited
  • Saturdays82% on time · p90 50 min · 131 flights · limited
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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.