BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ORD→AZO

Chicago, IL (ORD) to Kalamazoo, MI (AZO) flight delay odds

71.0% of 990 official scheduled ORD-to-AZO flights arrived on time; 17.3% arrived at least 30 minutes late and 4.2% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALHigher disruption
71.0%arrived on time
17.3%30+ min late
4.2%cancelled
990scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.6%all scheduled flights
120+ minutes late2.9%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+10.1 mincompleted flights

Which departure time was most reliable for ORD to AZO?

Among qualifying ORD-to-AZO departure window results, Early morning had the highest on-time rate: 83.7% of 172 flights. Night was lowest at 62.0% across 279 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning17283.7%6.4%4.7%
Late morning10778.5%12.1%3.7%
Afternoon32072.5%16.6%3.8%
Evening11262.5%26.8%3.6%
Night27962.0%22.9%5.0%

Which weekday was most reliable for ORD to AZO?

Among qualifying ORD-to-AZO weekday results, Tuesday had the highest on-time rate: 79.0% of 143 flights. Sunday was lowest at 63.4% across 145 flights.

DayFlightsOn time30+ minCancelled
Monday14568.3%20.0%5.5%
Tuesday14379.0%10.5%2.1%
Wednesday13866.7%19.6%3.6%
Thursday14170.9%16.3%5.0%
Friday14273.2%16.9%2.8%
Saturday13675.7%14.7%4.4%
Sunday14563.4%22.8%6.2%

Which airline was most reliable for ORD to AZO?

Among qualifying ORD-to-AZO airline results, Envoy Air had the highest on-time rate: 72.0% of 889 flights. SkyWest Airlines was lowest at 62.4% across 101 flights.

AirlineFlightsOn time30+ minCancelled
Envoy Air88972.0%16.6%4.2%
SkyWest Airlines10162.4%22.8%5.0%

Which month was most reliable for ORD to AZO?

Among qualifying ORD-to-AZO month results, September 2025 had the highest on-time rate: 86.0% of 86 flights. June 2026 was lowest at 52.4% across 63 flights.

MonthFlightsOn time30+ minCancelled
July 20258858.0%23.9%4.5%
August 20258577.6%11.8%2.4%
September 20258686.0%10.5%1.2%
October 20259179.1%5.5%0.0%
November 20258774.7%9.2%13.8%
December 20258964.0%21.3%6.7%
January 20266663.6%25.8%3.0%
February 20267375.3%19.2%0.0%
March 20269368.8%17.2%6.5%
April 20269071.1%21.1%4.4%
May 20267975.9%17.7%1.3%
June 20266352.4%30.2%6.3%

What drove ORD to AZO delay minutes?

Late aircraft was the largest recorded ORD-to-AZO delay category, accounting for 50.1% of 15,969 BTS-attributed delay minutes during July 2025–June 2026.

Airline14.6%
Late aircraft50.1%
National airspace18.0%
Weather17.2%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.