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

Columbia, MO (COU) to Chicago, IL (ORD) flight delay odds

69.8% of 1,903 official scheduled COU-to-ORD flights arrived on time; 18.1% arrived at least 30 minutes late and 3.6% 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 SIGNALVariable
69.8%arrived on time
18.1%30+ min late
3.6%cancelled
1,903scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.1%all scheduled flights
120+ minutes late5.8%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+17.9 mincompleted flights

Which departure time was most reliable for COU to ORD?

Among qualifying COU-to-ORD departure window results, Early morning had the highest on-time rate: 78.3% of 659 flights. Evening was lowest at 52.2% across 293 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning65978.3%13.4%2.4%
Late morning45670.8%17.3%2.0%
Afternoon49567.9%20.6%4.4%
Evening29352.2%25.9%7.5%

Which weekday was most reliable for COU to ORD?

Among qualifying COU-to-ORD weekday results, Wednesday had the highest on-time rate: 73.2% of 257 flights. Sunday was lowest at 62.8% across 282 flights.

DayFlightsOn time30+ minCancelled
Monday28770.4%17.8%4.5%
Tuesday27068.5%20.0%3.0%
Wednesday25773.2%15.2%3.5%
Thursday27571.6%15.6%2.5%
Friday27970.6%18.6%2.9%
Saturday25371.9%17.0%4.3%
Sunday28262.8%22.3%4.6%

Which airline was most reliable for COU to ORD?

Among qualifying COU-to-ORD airline results, Envoy Air had the highest on-time rate: 73.3% of 1,125 flights. SkyWest Airlines was lowest at 64.7% across 778 flights.

AirlineFlightsOn time30+ minCancelled
Envoy Air1,12573.3%15.6%2.8%
SkyWest Airlines77864.7%21.9%4.9%

Which month was most reliable for COU to ORD?

Among qualifying COU-to-ORD month results, February 2026 had the highest on-time rate: 80.5% of 164 flights. December 2025 was lowest at 56.6% across 205 flights.

MonthFlightsOn time30+ minCancelled
July 20258267.1%20.7%1.2%
August 20257767.5%14.3%3.9%
September 202510774.8%13.1%0.9%
October 202517973.7%14.0%0.0%
November 202516770.1%17.4%7.8%
December 202520556.6%34.6%4.4%
January 202618568.6%19.5%3.8%
February 202616480.5%9.8%0.0%
March 202618262.1%22.5%7.1%
April 202619567.7%17.4%5.6%
May 202618675.3%13.4%2.2%
June 202617475.9%14.9%4.0%

What drove COU to ORD delay minutes?

Late aircraft was the largest recorded COU-to-ORD delay category, accounting for 45.0% of 47,568 BTS-attributed delay minutes during July 2025–June 2026.

Airline25.3%
Late aircraft45.0%
National airspace20.7%
Weather9.0%
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.