OnTimeStats

Historical on-time performance

Detroit to Norfolk

529 miData through Dec 2025Source: US DOT · BTS

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

On-time rate77%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights

based on 602 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.

  • SkyWest Airlines
    On-time79%
    Medianon time
    p9040 min
    Cancel1.6%
    Flights247
  • Delta Air Lines
    On-time76%
    Medianon time
    p9050 min
    Cancel0.8%
    Flights355

Why flights run late

Delay causes

  • Airline61%
  • Weather11%
  • Air traffic (NAS)12%
  • 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 → ORF

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 77% to 81% on time.

  • Middays81% on time · p90 40 min · 887 flights
  • Overnights80% on time · p90 30 min · 930 flights
  • Afternoons77% on time · p90 40 min · 505 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 86% on time.

  • Tuesdays86% on time · p90 25 min · 311 flights
  • Wednesdays84% on time · p90 25 min · 308 flights
  • Saturdays84% on time · p90 30 min · 298 flights
  • Thursdays79% on time · p90 45 min · 355 flights
  • Mondays77% on time · p90 45 min · 364 flights
  • Fridays77% on time · p90 45 min · 361 flights
  • Sundays74% on time · p90 40 min · 355 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.