OnTimeStats

Historical on-time performance

Charleston to Chicago

416 miData through May 2026Source: US DOT · BTS

Flights on CRW–ORD arrive on time 62% of the time over the last 12 months.

On-time rate62%arrived within 15 min
p90 delay100 min1 in 10 flights is worse (tail risk)
Cancelled3.2%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-time62%
    Medianon time
    p90100 min
    Cancel3.2%
    Flights950

Why flights run late

Delay causes

  • Airline37%
  • Weather6%
  • Air traffic (NAS)26%
  • Late aircraft31%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather93%
  • Air traffic (NAS)7%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 30 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 CRW → ORD

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 54% to 78% on time.

  • Mornings78% on time · p90 70 min · 1,053 flights
  • Afternoons75% on time · p90 65 min · 259 flights
  • Middays73% on time · p90 70 min · 456 flights
  • Evenings54% on time · p90 105 min · 1,059 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 67% to 70% on time.

  • Wednesdays70% on time · p90 95 min · 410 flights
  • Mondays68% on time · p90 90 min · 410 flights
  • Saturdays68% on time · p90 80 min · 392 flights
  • Tuesdays68% on time · p90 90 min · 404 flights
  • Thursdays68% on time · p90 90 min · 409 flights
  • Fridays67% on time · p90 95 min · 402 flights
  • Sundays67% on time · p90 80 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.