OnTimeStats

Historical on-time performance

Chicago to La Crosse

215 miData through May 2026Source: US DOT · BTS

Flights on ORD–LSE 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)
Cancelled4.1%of scheduled flights

based on 1,049 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Envoy Air
    On-time72%
    Medianon time
    p9045 min
    Cancel4.1%
    Flights1,049

Why flights run late

Delay causes

  • Airline17%
  • Weather12%
  • Air traffic (NAS)20%
  • Late aircraft51%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather58%
  • Air traffic (NAS)42%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 43 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 → LSE

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 64% to 85% on time.

  • Middays85% on time · p90 25 min · 158 flights · limited
  • Mornings80% on time · p90 25 min · 422 flights
  • Afternoons75% on time · p90 50 min · 463 flights
  • Overnights64% on time · p90 65 min · 641 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 79% on time.

  • Tuesdays79% on time · p90 30 min · 237 flights
  • Saturdays76% on time · p90 35 min · 235 flights
  • Mondays73% on time · p90 50 min · 253 flights
  • Fridays72% on time · p90 50 min · 258 flights
  • Thursdays71% on time · p90 45 min · 246 flights
  • Sundays71% on time · p90 55 min · 253 flights
  • Wednesdays69% on time · p90 50 min · 236 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.