OnTimeStats

Historical on-time performance

Chicago to Moline

139 miData through May 2026Source: US DOT · BTS

Flights on ORD–MLI arrive on time 65% of the time over the last 12 months.

On-time rate65%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled4.2%of scheduled flights

based on 2,133 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Envoy Airbest
    On-time68%
    Medianon time
    p9060 min
    Cancel2.3%
    Flights570
  • SkyWest Airlines
    On-time64%
    Medianon time
    p9080 min
    Cancel4.9%
    Flights1,563

Why flights run late

Delay causes

  • Airline34%
  • Weather14%
  • Air traffic (NAS)19%
  • Late aircraft34%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline1%
  • Weather81%
  • Air traffic (NAS)18%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 90 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 → MLI

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 76% on time.

  • Mornings76% on time · p90 40 min · 1,264 flights
  • Middays70% on time · p90 75 min · 583 flights
  • Evenings68% on time · p90 65 min · 677 flights
  • Afternoons67% on time · p90 70 min · 1,075 flights
  • Overnights64% on time · p90 70 min · 997 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 63% to 76% on time.

  • Tuesdays76% on time · p90 55 min · 641 flights
  • Wednesdays73% on time · p90 55 min · 656 flights
  • Saturdays71% on time · p90 55 min · 604 flights
  • Thursdays71% on time · p90 50 min · 671 flights
  • Sundays67% on time · p90 80 min · 666 flights
  • Mondays65% on time · p90 80 min · 683 flights
  • Fridays63% on time · p90 65 min · 675 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.