OnTimeStats

Historical on-time performance

Fort Lauderdale to Detroit

1,127 miData through Dec 2025Source: US DOT · BTS

Flights on FLL–DTW arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights

based on 2,702 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.

  • Delta Air Lines
    On-time77%
    Medianon time
    p9055 min
    Cancel0.9%
    Flights1,714
  • Spirit Airlines
    On-time76%
    Medianon time
    p9050 min
    Cancel0.6%
    Flights988

Why flights run late

Delay causes

  • Airline35%
  • Weather5%
  • Air traffic (NAS)19%
  • Late aircraft41%
  • Security0%

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 FLL → DTW

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 — 88% on time.

  • Mornings88% on time · p90 15 min · 2,623 flights
  • Middays79% on time · p90 40 min · 1,530 flights
  • Afternoons72% on time · p90 60 min · 1,532 flights
  • Overnights67% on time · p90 75 min · 707 flights
  • Evenings66% on time · p90 75 min · 1,193 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 83% on time.

  • Tuesdays83% on time · p90 25 min · 1,018 flights
  • Wednesdays81% on time · p90 35 min · 1,022 flights
  • Thursdays79% on time · p90 40 min · 1,101 flights
  • Saturdays77% on time · p90 50 min · 1,103 flights
  • Fridays76% on time · p90 45 min · 1,108 flights
  • Mondays75% on time · p90 55 min · 1,115 flights
  • Sundays72% on time · p90 60 min · 1,118 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.