Airport Reliability
CMI · Champaign/Urbana
Champaign/Urbana, IL (CMI)
- 82%
- Departures within 15 minutes
- 12 min
- Average departure delay
- 77%
- Arrivals within 15 minutes
- 2.9%
- Departures cancelled
Based on 1,752 departures and 1,752 arrivals. Data through May 2026.
What the data says
Morning-you made the right choice.
Departures from CMI departing between 3–6 AM arrived on time 88% of the time, versus 60% between 6–9 PM.
Sunday scaries are real for this one.
Departures from CMI arrived on time 84% of the time on Saturdays. On Sundays: 77%.
When CMI gets messy
- 3–6 AM88%(25 flights)
- 6–9 AM87%(640 flights)
- 9 AM–12 PM79%(245 flights)
- 12–3 PM80%(230 flights)
- 3–6 PM77%(352 flights)
- 6–9 PM60%(207 flights)
- Mon78%(254 flights)
- Tue81%(192 flights)
- Wed79%(241 flights)
- Thu78%(260 flights)
- Fri82%(252 flights)
- Sat84%(240 flights)
- Sun77%(260 flights)
82%
May
Jun 73% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 73% | 130 |
| July 2025 | 77% | 127 |
| August 2025 | 80% | 142 |
| September 2025 | 87% | 126 |
| October 2025 | 76% | 165 |
| November 2025 | 83% | 150 |
| December 2025 | 73% | 150 |
| January 2026 | 80% | 145 |
| February 2026 | 85% | 136 |
| March 2026 | 79% | 141 |
| April 2026 | 83% | 140 |
| May 2026 | 82% | 147 |
Airlines departing CMI
Busiest routes from CMI
Based on 1,752 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.