OnTimeStats

Historical on-time performance

Chicago to Morgantown

449 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–MGW arrive on time 59% of the time over the last 12 months.

On-time rate59%arrived within 15 min
p90 delay110 min1 in 10 flights is worse (tail risk)
Cancelled4.6%of scheduled flights

based on 307 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time59%
    Medianon time
    p90110 min
    Cancel4.6%
    Flights307

Why flights run late

Delay causes

  • Airline41%
  • Weather21%
  • Air traffic (NAS)6%
  • Late aircraft33%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly ORD → MGW

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best day of week

On-time rates are fairly even by day on this route — ranging from 55% to 69% on time.

  • Tuesdays69% on time · p90 150 min · 55 flights · limited
  • Thursdays64% on time · p90 105 min · 53 flights · limited
  • Saturdays64% on time · p90 85 min · 55 flights · limited
  • Mondays64% on time · p90 110 min · 55 flights · limited
  • Wednesdays58% on time · p90 130 min · 55 flights · limited
  • Sundays56% on time · p90 105 min · 55 flights · limited
  • Fridays55% on time · p90 105 min · 55 flights · limited
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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.