OnTimeStats

Historical on-time performance

Detroit to Miami

1,145 miData through Dec 2025Source: US DOT · BTS

Flights on DTW–MIA arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights

based on 1,550 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • American Airlinesbest
    On-time87%
    Medianon time
    p9015 min
    Cancel0.6%
    Flights337
  • Delta Air Lines
    On-time75%
    Medianon time
    p9045 min
    Cancel0.4%
    Flights998
  • Spirit Airlines
    On-time76%
    Medianon time
    p9045 min
    Cancel1.1%
    Flights184
  • Envoy Air
    On-time74%
    Medianon time
    p9045 min
    Cancel0.0%
    Flights31

Why flights run late

Delay causes

  • Airline45%
  • Weather1%
  • Air traffic (NAS)37%
  • Late aircraft16%
  • 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 DTW → MIA

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

Best time of day

Mornings are the most reliable time of day to fly this route — 83% on time.

  • Mornings83% on time · p90 25 min · 2,468 flights
  • Middays72% on time · p90 65 min · 444 flights
  • Evenings67% on time · p90 70 min · 1,135 flights
  • Afternoons67% on time · p90 70 min · 424 flights
  • Overnights66% on time · p90 70 min · 501 flights

Best day of week

Tuesdays are the most reliable day to fly this route — 83% on time.

  • Tuesdays83% on time · p90 30 min · 654 flights
  • Wednesdays79% on time · p90 35 min · 665 flights
  • Fridays76% on time · p90 40 min · 739 flights
  • Mondays76% on time · p90 50 min · 729 flights
  • Thursdays76% on time · p90 45 min · 728 flights
  • Saturdays72% on time · p90 50 min · 720 flights
  • Sundays68% on time · p90 60 min · 737 flights
Advertisement

Keep exploring

Related pages

Delay predictorfor this route→DTW airportDetroit→MIA airportMiami→US Airways on this routecarrier detail→US Airwaysairline profile→

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.