Route
CMI → DFW
University of Illinois Willard Airport Dallas Fort Worth International Airport
692 miles
Return route DFW → CMI →
How punctual is this route?
- On-time arrivals
- 86.8%
- Less than 15 minutes late
- Cancelled
- 2.1%
- Of scheduled flights
- Average delay when late
- 115 min
- Flights arriving 15+ minutes late
- Flights tracked
- 715
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 42%
- Late-arriving aircraft 30%
- Air traffic control & airport 18%
- Extreme weather 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 91.4% | 60 |
| October 2025 | 83.9% | 62 |
| November 2025 | 82.5% | 59 |
| December 2025 | 83.1% | 62 |
| January 2026 | 89.8% | 62 |
| February 2026 | 96.4% | 56 |
| March 2026 | 87.1% | 62 |
| April 2026 | 86.2% | 60 |
| May 2026 | 84.5% | 61 |
| June 2026 | 79.2% | 55 |
| July 2026 | 87.9% | 58 |
| August 2026 | 89.7% | 58 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Envoy Air | 715 | 86.8% | 2.1% | 115 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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