OnTimeStats

Historical on-time performance

Chicago to Eau Claire

269 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–EAU arrive on time 67% of the time over the last 12 months.

On-time rate67%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled2.6%of scheduled flights

based on 627 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time67%
    Medianon time
    p9070 min
    Cancel2.6%
    Flights627

Why flights run late

Delay causes

  • Airline38%
  • Weather15%
  • Air traffic (NAS)17%
  • Late aircraft30%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly ORD → EAU

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

Best time of day

Middays are the most reliable time of day to fly this route — 72% on time.

  • Middays72% on time · p90 65 min · 272 flights
  • Overnights64% on time · p90 75 min · 379 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 58% to 73% on time.

  • Thursdays73% on time · p90 55 min · 106 flights · limited
  • Fridays72% on time · p90 55 min · 110 flights · limited
  • Sundays71% on time · p90 90 min · 110 flights · limited
  • Mondays67% on time · p90 50 min · 110 flights · limited
  • Wednesdays63% on time · p90 90 min · 88 flights · limited
  • Tuesdays58% on time · p90 65 min · 57 flights · limited
  • Saturdays58% on time · p90 130 min · 78 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.