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

Chicago, IL (ORD) to Champaign/Urbana, IL (CMI) flight delay odds

68.8% of 1,042 official scheduled ORD-to-CMI flights arrived on time; 19.1% 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
68.8%arrived on time
19.1%30+ min late
3.6%cancelled
1,042scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.2%all scheduled flights
120+ minutes late2.8%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+10.2 mincompleted flights

Which departure time was most reliable for ORD to CMI?

Among qualifying ORD-to-CMI departure window results, Afternoon had the highest on-time rate: 79.9% of 189 flights. Evening was lowest at 62.2% across 558 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning4770.2%19.1%4.3%
Late morning24875.0%14.5%1.2%
Afternoon18979.9%11.6%2.6%
Evening55862.2%23.7%4.8%

Which weekday was most reliable for ORD to CMI?

Among qualifying ORD-to-CMI weekday results, Tuesday had the highest on-time rate: 78.6% of 103 flights. Thursday was lowest at 64.2% across 162 flights.

DayFlightsOn time30+ minCancelled
Monday16167.1%18.0%3.7%
Tuesday10378.6%13.6%1.0%
Wednesday14468.8%21.5%3.5%
Thursday16264.2%24.7%3.1%
Friday15768.2%17.2%3.8%
Saturday15070.0%16.0%4.7%
Sunday16568.5%20.6%4.2%

Which airline was most reliable for ORD to CMI?

Only Envoy Air met the ORD-to-CMI airline threshold: 68.8% of 1,042 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Envoy Air1,04268.8%19.1%3.6%

Which month was most reliable for ORD to CMI?

Among qualifying ORD-to-CMI month results, September 2025 had the highest on-time rate: 85.3% of 68 flights. December 2025 was lowest at 53.6% across 97 flights.

MonthFlightsOn time30+ minCancelled
July 20256960.9%27.5%2.9%
August 20258470.2%20.2%3.6%
September 20256885.3%8.8%0.0%
October 202510372.8%12.6%0.0%
November 202510468.3%14.4%10.6%
December 20259753.6%27.8%6.2%
January 20268754.0%29.9%1.1%
February 20268068.8%22.5%0.0%
March 20268469.0%19.0%7.1%
April 20268668.6%18.6%3.5%
May 20269084.4%11.1%1.1%
June 20269072.2%17.8%4.4%

What drove ORD to CMI delay minutes?

Late aircraft was the largest recorded ORD-to-CMI delay category, accounting for 57.0% of 17,760 BTS-attributed delay minutes during July 2025–June 2026.

Airline13.8%
Late aircraft57.0%
National airspace19.8%
Weather9.4%
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.