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Route Reliability

Chicago → BMI

ORD–BMI · 116 miles · Chicago O'Hare International Airport to BMI Airport

73
Usually Fine
WanderNerd Reliability Score
78%
Arrive within 15 minutes
6 min
Average arrival delay
3.1%
Cancelled
880
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 78% of the time across 880 flights. No comparison to make.

What the data says

The 3–6 PM departure wins.

ORD–BMI flights departing between 3–6 PM arrived on time 89% of the time, versus 70% between 9 PM–12 AM.

Friday is doing you no favors.

ORD–BMI flights arrived on time 83% of the time on Tuesdays. On Fridays: 75%.

Keep a backup plan handy.

This route was cancelled 3.1% of the time. Typical for U.S. flights is around 1–2%.

Ticking up lately.

ORD–BMI flights arrived on time 78% of the time over the last three months in the data, compared with 72% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon77%(124 flights)
  • Tue83%(122 flights)
  • Wed79%(121 flights)
  • Thu79%(120 flights)
  • Fri75%(123 flights)
  • Sat79%(115 flights)
  • Sun75%(126 flights)
On-time by departure window
  • 6–9 AM—(4 flights)
  • 9 AM–12 PM79%(165 flights)
  • 12–3 PM85%(252 flights)
  • 3–6 PM89%(55 flights)
  • 6–9 PM73%(154 flights)
  • 9 PM–12 AM70%(221 flights)
On-time trend by month
87%
May

Jun 77% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%62
July 202564%61
August 202585%60
September 202587%60
October 202587%61
November 202584%75
December 202561%76
January 202672%57
February 202685%72
March 202674%86
April 202674%88
May 202687%93

Keep nerding

Based on 880 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.