OnTimeStats

Historical on-time performance

Austin to Detroit

1,149 miData through Dec 2025Source: US DOT · BTS

Flights on AUS–DTW arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights

based on 1,276 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time85%
    Medianon time
    p9030 min
    Cancel0.5%
    Flights1,276

Why flights run late

Delay causes

  • Airline55%
  • Weather3%
  • Air traffic (NAS)6%
  • Late aircraft36%
  • 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 AUS → 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 — 93% on time.

  • Mornings93% on time · p90 on time · 1,316 flights
  • Middays82% on time · p90 35 min · 936 flights
  • Evenings78% on time · p90 55 min · 392 flights
  • Afternoons77% on time · p90 50 min · 1,461 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 81% to 87% on time.

  • Wednesdays87% on time · p90 20 min · 595 flights
  • Saturdays86% on time · p90 20 min · 474 flights
  • Tuesdays85% on time · p90 20 min · 595 flights
  • Mondays82% on time · p90 40 min · 617 flights
  • Thursdays82% on time · p90 35 min · 606 flights
  • Fridays82% on time · p90 35 min · 617 flights
  • Sundays81% on time · p90 40 min · 602 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.