OnTimeStats

Historical on-time performance

Chicago to Mason City

289 miData through Dec 2025Source: US DOT · BTS

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

On-time rate72%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled4.8%of scheduled flights

based on 627 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time72%
    Medianon time
    p9045 min
    Cancel4.8%
    Flights627

Why flights run late

Delay causes

  • Airline52%
  • Weather7%
  • Air traffic (NAS)16%
  • Late aircraft24%
  • 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 → MCW

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 63% to 81% on time.

  • Mornings81% on time · p90 30 min · 888 flights
  • Evenings74% on time · p90 30 min · 97 flights · limited
  • Middays73% on time · p90 85 min · 108 flights · limited
  • Afternoons63% on time · p90 55 min · 308 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 79% on time.

  • Wednesdays79% on time · p90 30 min · 226 flights
  • Tuesdays78% on time · p90 30 min · 138 flights · limited
  • Saturdays78% on time · p90 30 min · 137 flights · limited
  • Thursdays77% on time · p90 40 min · 222 flights
  • Mondays75% on time · p90 30 min · 226 flights
  • Fridays75% on time · p90 45 min · 225 flights
  • Sundays72% on time · p90 65 min · 227 flights
Advertisement

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.