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Route Reliability

BMI → Chicago

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

80
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
6 min
Average arrival delay
2.7%
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 83% of the time across 880 flights. No comparison to make.

What the data says

Morning flights do better here.

BMI–ORD flights departing between 6–9 AM arrived on time 88% of the time, versus 73% between 6–9 PM.

Wednesday comes out ahead.

A small edge: 85% on time on Wednesdays against 79% on Sundays.

Flights on this route

The breakdown

On-time by weekday
  • Mon83%(124 flights)
  • Tue84%(124 flights)
  • Wed85%(123 flights)
  • Thu84%(122 flights)
  • Fri81%(121 flights)
  • Sat83%(116 flights)
  • Sun79%(126 flights)
On-time by departure window
  • 3–6 AM87%(171 flights)
  • 6–9 AM88%(189 flights)
  • 9 AM–12 PM77%(168 flights)
  • 12–3 PM84%(191 flights)
  • 3–6 PM76%(89 flights)
  • 6–9 PM73%(48 flights)
On-time trend by month
94%
May

Jun 86% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%63
July 202575%61
August 202593%60
September 202585%60
October 202577%61
November 202583%75
December 202564%77
January 202688%57
February 202693%72
March 202676%88
April 202681%89
May 202694%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.