OnTimeStats

Historical on-time performance

Detroit to Windsor Locks

548 miData through Dec 2025Source: US DOT · BTS

Flights on DTW–BDL arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 1,251 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-time82%
    Medianon time
    p9035 min
    Cancel0.9%
    Flights1,190
  • Spirit Airlines
    On-time77%
    Medianon time
    p9045 min
    Cancel0.0%
    Flights61

Why flights run late

Delay causes

  • Airline52%
  • Weather10%
  • Air traffic (NAS)15%
  • Late aircraft22%
  • 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 → BDL

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 — 90% on time.

  • Mornings90% on time · p90 10 min · 490 flights
  • Middays86% on time · p90 30 min · 1,119 flights
  • Afternoons84% on time · p90 25 min · 1,049 flights
  • Overnights76% on time · p90 45 min · 1,123 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 86% on time.

  • Tuesdays86% on time · p90 25 min · 556 flights
  • Wednesdays85% on time · p90 30 min · 559 flights
  • Thursdays84% on time · p90 35 min · 558 flights
  • Saturdays83% on time · p90 35 min · 434 flights
  • Mondays82% on time · p90 40 min · 563 flights
  • Sundays80% on time · p90 35 min · 551 flights
  • Fridays80% on time · p90 35 min · 561 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.