OnTimeStats

Historical on-time performance

Chicago to Norfolk

717 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–ORF arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 1,195 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time72%
    Medianon time
    p9065 min
    Cancel0.8%
    Flights353
  • United Airlines
    On-time73%
    Medianon time
    p9060 min
    Cancel0.6%
    Flights681
  • SkyWest Airlines
    On-time70%
    Medianon time
    p9040 min
    Cancel0.0%
    Flights30
  • Envoy Airbest
    On-time88%
    Medianon time
    p9015 min
    Cancel1.0%
    Flights100
  • PSA Airlines
    On-time19%
    Median60 min
    p90165 min
    Cancel9.7%
    Flights31

Why flights run late

Delay causes

  • Airline28%
  • Weather9%
  • Air traffic (NAS)13%
  • Late aircraft50%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly ORD → 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 69% to 80% on time.

  • Mornings80% on time · p90 40 min · 618 flights
  • Middays79% on time · p90 45 min · 878 flights
  • Overnights76% on time · p90 50 min · 265 flights
  • Afternoons76% on time · p90 45 min · 256 flights
  • Evenings69% on time · p90 65 min · 1,764 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 78% on time.

  • Tuesdays78% on time · p90 45 min · 533 flights
  • Mondays77% on time · p90 50 min · 554 flights
  • Saturdays76% on time · p90 60 min · 537 flights
  • Wednesdays75% on time · p90 50 min · 534 flights
  • Thursdays72% on time · p90 55 min · 541 flights
  • Fridays72% on time · p90 50 min · 537 flights
  • Sundays71% on time · p90 65 min · 547 flights
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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.