OnTimeStats

Historical on-time performance

Denver to Norfolk

1,553 miData through May 2026Source: US DOT · BTS

Flights on DEN–ORF arrive on time 64% of the time over the last 12 months.

On-time rate64%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 500 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.

  • Southwest Airlines
    On-time64%
    Median5 min
    p9045 min
    Cancel0.0%
    Flights151
  • United Airlines
    On-time64%
    Medianon time
    p9070 min
    Cancel0.9%
    Flights349

Why flights run late

Delay causes

  • Airline34%
  • Weather1%
  • Air traffic (NAS)27%
  • Late aircraft38%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather100%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 3 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 DEN → ORF

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

Best time of day

Middays are the most reliable time of day to fly this route — 73% on time.

  • Middays73% on time · p90 35 min · 395 flights
  • Evenings64% on time · p90 55 min · 1,171 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 63% to 74% on time.

  • Wednesdays74% on time · p90 45 min · 196 flights · limited
  • Tuesdays70% on time · p90 55 min · 228 flights
  • Fridays67% on time · p90 50 min · 235 flights
  • Mondays67% on time · p90 55 min · 230 flights
  • Thursdays65% on time · p90 55 min · 267 flights
  • Saturdays64% on time · p90 50 min · 286 flights
  • Sundays63% on time · p90 45 min · 306 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.