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Route Reliability

BIS → Chicago

BIS–ORD · 715 miles · BIS Airport to Chicago O'Hare International Airport

80
Pretty Reliable
WanderNerd Reliability Score
73%
Arrive within 15 minutes
9 min
Average arrival delay
0.4%
Cancelled
270
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 73% of the time across 270 flights. No comparison to make.

What the data says

Sunday scaries are real for this one.

BIS–ORD flights arrived on time 85% of the time on Fridays and just 64% on Sundays. That gap is worth planning around.

Flights on this route

The breakdown

On-time by weekday
  • Mon65%(37 flights)
  • Tue76%(38 flights)
  • Wed68%(38 flights)
  • Thu74%(39 flights)
  • Fri85%(39 flights)
  • Sat80%(39 flights)
  • Sun64%(39 flights)
On-time by departure window
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM73%(268 flights)
On-time trend by month
87%
May

Jun 62% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%26
July 202542%31
August 202584%31
September 202587%30
October 202571%31
November 202580%30
December 202563%30
April 202679%24
May 202687%31

Keep nerding

Based on 270 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.