OnTimeStats

Historical on-time performance

Norfolk to Detroit

529 miData through May 2026Source: US DOT · BTS

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

On-time rate78%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 571 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.

  • Delta Air Lines
    On-time80%
    Medianon time
    p9045 min
    Cancel1.6%
    Flights495
  • SkyWest Airlines
    On-time66%
    Medianon time
    p90145 min
    Cancel1.3%
    Flights76

Why flights run late

Delay causes

  • Airline60%
  • Weather4%
  • Air traffic (NAS)15%
  • Late aircraft22%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline89%
  • Weather0%
  • Air traffic (NAS)11%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 9 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly ORF → DTW

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 87% on time.

  • Mornings87% on time · p90 20 min · 946 flights
  • Middays79% on time · p90 45 min · 819 flights
  • Evenings74% on time · p90 65 min · 347 flights
  • Afternoons72% on time · p90 70 min · 204 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 84% on time.

  • Wednesdays84% on time · p90 35 min · 303 flights
  • Tuesdays84% on time · p90 45 min · 304 flights
  • Saturdays82% on time · p90 35 min · 293 flights
  • Sundays81% on time · p90 45 min · 349 flights
  • Fridays80% on time · p90 45 min · 357 flights
  • Thursdays78% on time · p90 60 min · 352 flights
  • Mondays78% on time · p90 50 min · 358 flights

Keep exploring

Related pages

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.