OnTimeStats

Historical on-time performance

Chicago to Madison

109 miData through Dec 2025Source: US DOT · BTS

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

On-time rate72%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled2.5%of scheduled flights

based on 3,153 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airwaysbest
    On-time83%
    Medianon time
    p9040 min
    Cancel0.7%
    Flights544
  • United Airlines
    On-time68%
    Medianon time
    p9060 min
    Cancel1.4%
    Flights568
  • SkyWest Airlines
    On-time68%
    Medianon time
    p9080 min
    Cancel3.3%
    Flights1,143
  • Envoy Air
    On-time74%
    Medianon time
    p9055 min
    Cancel2.6%
    Flights868
  • PSA Airlines
    On-time53%
    Medianon time
    p90165 min
    Cancel16.7%
    Flights30

Why flights run late

Delay causes

  • Airline31%
  • Weather13%
  • Air traffic (NAS)14%
  • Late aircraft42%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

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 (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 63% to 79% on time.

  • Middays79% on time · p90 45 min · 1,617 flights
  • Mornings79% on time · p90 45 min · 1,215 flights
  • Afternoons76% on time · p90 50 min · 1,606 flights
  • Evenings71% on time · p90 60 min · 1,361 flights
  • Overnights63% on time · p90 80 min · 1,568 flights

Best day of week

Tuesdays are the most reliable day to fly this route — 79% on time.

  • Tuesdays79% on time · p90 45 min · 1,035 flights
  • Saturdays75% on time · p90 60 min · 923 flights
  • Wednesdays73% on time · p90 60 min · 1,036 flights
  • Mondays73% on time · p90 55 min · 1,105 flights
  • Thursdays72% on time · p90 65 min · 1,086 flights
  • Fridays72% on time · p90 50 min · 1,084 flights
  • Sundays71% on time · p90 65 min · 1,099 flights
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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.