OnTimeStats

Historical on-time performance

Chicago to Charleston

416 miData through May 2026Source: US DOT · BTS

Flights on ORD–CRW arrive on time 61% of the time over the last 12 months.

On-time rate61%arrived within 15 min
p90 delay95 min1 in 10 flights is worse (tail risk)
Cancelled2.6%of scheduled flights

based on 950 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time61%
    Medianon time
    p9095 min
    Cancel2.6%
    Flights950

Why flights run late

Delay causes

  • Airline36%
  • Weather8%
  • Air traffic (NAS)21%
  • Late aircraft35%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather92%
  • Air traffic (NAS)8%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 25 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 ORD → CRW

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 — 78% on time.

  • Middays78% on time · p90 50 min · 712 flights
  • Afternoons69% on time · p90 70 min · 1,010 flights
  • Evenings63% on time · p90 90 min · 1,049 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 64% to 72% on time.

  • Saturdays72% on time · p90 55 min · 391 flights
  • Tuesdays72% on time · p90 75 min · 404 flights
  • Wednesdays70% on time · p90 85 min · 409 flights
  • Thursdays69% on time · p90 60 min · 409 flights
  • Mondays67% on time · p90 80 min · 411 flights
  • Fridays67% on time · p90 90 min · 403 flights
  • Sundays64% on time · p90 85 min · 404 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.