OnTimeStats

Historical on-time performance

Lafayette to Chicago

119 miData through Dec 2025Source: US DOT · BTS

Flights on LAF–ORD arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay90 min1 in 10 flights is worse (tail risk)
Cancelled2.1%of scheduled flights

based on 236 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time78%
    Medianon time
    p9090 min
    Cancel2.1%
    Flights236

Why flights run late

Delay causes

  • Airline35%
  • Weather0%
  • Air traffic (NAS)13%
  • Late aircraft52%
  • 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 LAF → ORD

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Mornings are the most reliable time of day to fly this route — 84% on time.

  • Mornings84% on time · p90 40 min · 148 flights · limited
  • Afternoons67% on time · p90 155 min · 88 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.