University of Illinois/Willard in November 2023

88.9%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In November 2023, reporting carriers scheduled 117 domestic departures from University of Illinois/Willard (CMI). 88.9% left less than 15 minutes late and 89.7% reached their destination on time; 0.0% were cancelled.

Nationally that month, 86.0% of flights departed on time and 86.2% arrived on time, so CMI departures were 2.9 points above the national departure figure.

Flights arriving at CMI that month were on time 82.9% of the time (117 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 49%, air carrier 33% and national aviation system 16%.

On time 89.7%
Arrived 15+ minutes late 10.3%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from CMI in November 2023, judged by arrival at the destination.

November 2023 against a year earlier, the airport's year and the nation

Measure	Nov 2023	Year earlier	CMI, 12 months to Jul 2026	All reported flights, Nov 2023
Departed on time	88.9%	—	79.7%	86.0%
Arrived on time	89.7%	—	77.6%	86.2%
Cancelled	0.0%	—	3.0%	0.1%
Average departure delay (late minutes only)	11.8 min	—	18.0 min	9.4 min
Scheduled departures a day	4	—	5	18,793
Scheduled departures	117	—	1,785	563,777

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	117	100%	89.7%	-1.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
CMI–DFW	Champaign/Urbana to Dallas/Fort Worth	59	91.5%	-1.9 min	0.0%
CMI–ORD	Champaign/Urbana to Chicago	58	87.9%	-1.5 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), November 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Nov 2023	Minutes
Air carrier	32.8%	42.5%	379
Late-arriving aircraft	49.0%	37.3%	567
National Aviation System	16.3%	16.2%	189
Extreme weather	1.8%	3.7%	21
Security	0.0%	0.3%	0

1,156 delay minutes on 12 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left CMI on time in November 2023?

88.9% of 117 scheduled domestic departures left less than 15 minutes late, and 89.7% reached their destination on time. The national figures that month were 86.0% and 86.2%.

How does that compare with a year earlier?

November 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for November 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for CMI · methodology · corrections.