OnTimeStats

Historical on-time performance

Chicago to Madison

108 miData through May 2026Source: US DOT · BTS

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

On-time rate69%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled3.5%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

  • Republic Airwaysbest
    On-time78%
    Medianon time
    p9045 min
    Cancel1.9%
    Flights678
  • Envoy Air
    On-time73%
    Medianon time
    p9055 min
    Cancel3.6%
    Flights1,009
  • United Airlines
    On-time67%
    Medianon time
    p9065 min
    Cancel1.9%
    Flights859
  • SkyWest Airlines
    On-time62%
    Medianon time
    p9085 min
    Cancel5.1%
    Flights1,282
  • PSA Airlines
    On-time53%
    Medianon time
    p90165 min
    Cancel16.7%
    Flights30

Why flights run late

Delay causes

  • Airline29%
  • Weather16%
  • Air traffic (NAS)16%
  • Late aircraft39%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline2%
  • Weather71%
  • Air traffic (NAS)26%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 136 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 → MSN

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 62% to 79% on time.

  • Mornings79% on time · p90 45 min · 1,251 flights
  • Middays78% on time · p90 50 min · 2,035 flights
  • Afternoons73% on time · p90 60 min · 1,699 flights
  • Evenings69% on time · p90 60 min · 1,567 flights
  • Overnights62% on time · p90 80 min · 1,850 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 76% on time.

  • Tuesdays76% on time · p90 50 min · 1,174 flights
  • Saturdays74% on time · p90 60 min · 1,071 flights
  • Wednesdays72% on time · p90 60 min · 1,172 flights
  • Thursdays71% on time · p90 65 min · 1,241 flights
  • Sundays70% on time · p90 70 min · 1,249 flights
  • Fridays70% on time · p90 55 min · 1,248 flights
  • Mondays69% on time · p90 60 min · 1,249 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.