Airport reliability
Champaign/Urbana (CMI) on-time performance
How reliably flights leave Champaign/Urbana, IL (CMI) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Champaign/Urbana, IL1,790 departures in 12 months
- Departures on time
- 77.8% U.S. average 75.6%
- Cancelled
- 3.1% U.S. average 1.9%
- 60+ minutes late
- 9.2% U.S. average 8.1%
- Scheduled departures
- 1,790 12 months
What this means
CMI departures beat the U.S. average.
- 77.8% of the 1,790 scheduled departures from Champaign/Urbana (CMI) arrived at their destination on time, 2.2 points higher than the U.S. average of 75.6%.
- 3.1% of departures were cancelled (U.S. average 1.9%), and 9.2% arrived an hour or more late.
- Flights arriving at CMI were on time 74.7% of the time.
- Over the last 3 years, February was the most reliable month for departures from CMI (85.0% on time) and June the least reliable (73.5%).
- Cancellations peaked in January, when 5.7% of flights were cancelled.
- Flights scheduled to depart 7 am to 8 am were the most punctual (88.0% on time); flights scheduled to depart 6 pm to 7 pm were the least (64.2%).
Airlines at CMI
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Envoy AirSold as American Eagle | 77.8% | 3.1% | 9.2% | 105 min | 1,790 |
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time CMI average 77.8%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing 6 am to 7 am | 85.7% | 427 |
| Departing 7 am to 8 am | 88.0% | 249 |
| Departing 9 am to 10 am | Insufficient sample | 47 |
| Departing 11 am to noon | 77.2% | 263 |
| Departing noon to 1 pm | Insufficient sample | 12 |
| Departing 1 pm to 2 pm | Insufficient sample | 32 |
| Departing 2 pm to 3 pm | 85.7% | 217 |
| Departing 3 pm to 4 pm | 73.8% | 237 |
| Departing 4 pm to 5 pm | 57.6% | 59 |
| Departing 6 pm to 7 pm | 64.2% | 162 |
| Departing 7 pm to 8 pm | 46.0% | 63 |
| Departing 8 pm to 9 pm | Insufficient sample | 22 |
Best and worst months at CMI
Share of scheduled flights on time 12-month average 77.8%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 74.6% | 386 |
| February | 85.0% | 360 |
| March | 78.8% | 386 |
| April | 77.7% | 408 |
| May | 75.5% | 425 |
| June | 73.5% | 393 |
| July | 78.5% | 405 |
| August | 80.1% | 423 |
| September | 82.8% | 338 |
| October | 81.8% | 400 |
| November | 82.7% | 369 |
| December | 77.9% | 371 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 85.9% | 128 |
| Oct 2025 | 75.8% | 165 |
| Nov 2025 | 75.5% | 163 |
| Dec 2025 | 68.6% | 159 |
| Jan 2026 | 77.9% | 149 |
| Feb 2026 | 84.6% | 136 |
| Mar 2026 | 76.7% | 146 |
| Apr 2026 | 77.4% | 146 |
| May 2026 | 79.5% | 151 |
| Jun 2026 | 73.1% | 145 |
| Jul 2026 | 82.1% | 151 |
| Aug 2026 | 78.8% | 151 |
Busiest routes from CMI
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Chicago (ORD) | 73.1% | 3.8% | 1 | 1,075 |
| Dallas/Fort Worth (DFW) | 84.8% | 2.1% | 1 | 715 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Champaign/Urbana, IL (CMI) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.