OnTimeStats

Historical on-time performance

Miami to Norfolk

802 miData through May 2026Source: US DOT · BTS

Flights on MIA–ORF arrive on time 71% of the time over the last 12 months.

On-time rate71%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights

based on 503 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.

  • Envoy Air
    On-time81%
    Medianon time
    p9025 min
    Cancel1.1%
    Flights91
  • American Airlines
    On-time69%
    Medianon time
    p9050 min
    Cancel1.5%
    Flights412

Why flights run late

Delay causes

  • Airline40%
  • Weather2%
  • Air traffic (NAS)14%
  • Late aircraft44%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather71%
  • Air traffic (NAS)29%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 7 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 MIA → ORF

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

Best time of day

Afternoons are the most reliable time of day to fly this route — 80% on time.

  • Afternoons80% on time · p90 35 min · 364 flights
  • Overnights69% on time · p90 60 min · 1,095 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 64% to 82% on time.

  • Tuesdays82% on time · p90 25 min · 228 flights
  • Thursdays77% on time · p90 70 min · 222 flights
  • Wednesdays76% on time · p90 50 min · 223 flights
  • Mondays75% on time · p90 40 min · 216 flights
  • Fridays73% on time · p90 55 min · 225 flights
  • Saturdays67% on time · p90 55 min · 234 flights
  • Sundays64% on time · p90 70 min · 226 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.