OnTimeStats

Historical on-time performance

Madison to Chicago

108 miData through May 2026Source: US DOT · BTS

Flights on MSN–ORD arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled3.6%of scheduled flights

based on 3,858 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Republic Airways
    On-time74%
    Medianon time
    p9055 min
    Cancel2.4%
    Flights677
  • Envoy Air
    On-time73%
    Medianon time
    p9050 min
    Cancel3.4%
    Flights1,010
  • United Airlines
    On-time71%
    Medianon time
    p9045 min
    Cancel2.1%
    Flights859
  • SkyWest Airlines
    On-time64%
    Medianon time
    p90110 min
    Cancel5.0%
    Flights1,282
  • PSA Airlines
    On-time47%
    Medianon time
    p90290+ min
    Cancel16.7%
    Flights30

Why flights run late

Delay causes

  • Airline28%
  • Weather10%
  • Air traffic (NAS)28%
  • Late aircraft34%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline5%
  • Weather68%
  • Air traffic (NAS)27%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 137 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 MSN → ORD

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

Best time of day

Mornings are the most reliable time of day to fly this route — 81% on time.

  • Mornings81% on time · p90 30 min · 3,115 flights
  • Middays77% on time · p90 60 min · 2,019 flights
  • Afternoons70% on time · p90 70 min · 1,583 flights
  • Overnights56% on time · p90 100 min · 255 flights
  • Evenings56% on time · p90 75 min · 1,436 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 70% to 76% on time.

  • Tuesdays76% on time · p90 50 min · 1,171 flights
  • Saturdays75% on time · p90 50 min · 1,084 flights
  • Wednesdays74% on time · p90 50 min · 1,176 flights
  • Thursdays74% on time · p90 55 min · 1,236 flights
  • Mondays71% on time · p90 55 min · 1,245 flights
  • Sundays71% on time · p90 70 min · 1,258 flights
  • Fridays70% on time · p90 55 min · 1,238 flights

Keep exploring

Related pages

Delay predictorfor this route→MSN airportMadison→ORD airportChicago→SkyWest Airlinesairline profile→Envoy Airairline profile→United Airlinesairline profile→Seasonal delay patternsguide→

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.