OnTimeStats

Historical on-time performance

Chicago to Moline

139 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–MLI arrive on time 70% of the time over the last 12 months.

On-time rate70%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled3.0%of scheduled flights

based on 1,884 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Envoy Air
    On-time69%
    Medianon time
    p9055 min
    Cancel2.6%
    Flights468
  • SkyWest Airlines
    On-time70%
    Medianon time
    p9060 min
    Cancel3.2%
    Flights1,416

Why flights run late

Delay causes

  • Airline39%
  • Weather14%
  • Air traffic (NAS)17%
  • Late aircraft29%
  • 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 → MLI

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 66% to 77% on time.

  • Middays77% on time · p90 40 min · 441 flights
  • Mornings77% on time · p90 35 min · 1,158 flights
  • Evenings74% on time · p90 50 min · 670 flights
  • Afternoons70% on time · p90 65 min · 986 flights
  • Overnights66% on time · p90 65 min · 878 flights

Best day of week

Tuesdays are the most reliable day to fly this route — 80% on time.

  • Tuesdays80% on time · p90 35 min · 584 flights
  • Wednesdays74% on time · p90 50 min · 594 flights
  • Saturdays74% on time · p90 45 min · 543 flights
  • Thursdays73% on time · p90 45 min · 598 flights
  • Mondays71% on time · p90 65 min · 617 flights
  • Sundays70% on time · p90 75 min · 597 flights
  • Fridays66% on time · p90 50 min · 600 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.