OnTimeStats

Historical on-time performance

Chicago to La Crosse

215 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–LSE arrive on time 74% of the time over the last 12 months.

On-time rate74%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled2.8%of scheduled flights

based on 892 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Envoy Air
    On-time74%
    Medianon time
    p9050 min
    Cancel2.8%
    Flights892

Why flights run late

Delay causes

  • Airline16%
  • Weather19%
  • Air traffic (NAS)16%
  • Late aircraft49%
  • 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 → LSE

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 86% on time.

  • Middays86% on time · p90 20 min · 225 flights
  • Mornings82% on time · p90 20 min · 343 flights
  • Afternoons78% on time · p90 45 min · 351 flights
  • Evenings73% on time · p90 55 min · 89 flights · limited
  • Overnights63% on time · p90 70 min · 491 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 80% on time.

  • Tuesdays80% on time · p90 40 min · 199 flights · limited
  • Mondays79% on time · p90 45 min · 224 flights
  • Saturdays76% on time · p90 30 min · 215 flights
  • Fridays74% on time · p90 50 min · 227 flights
  • Thursdays73% on time · p90 35 min · 214 flights
  • Sundays73% on time · p90 55 min · 225 flights
  • Wednesdays69% on time · p90 50 min · 195 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.