University of Illinois/Willard in June 2026

74.5%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 June 2026, reporting carriers scheduled 145 domestic departures from University of Illinois/Willard (CMI). 74.5% left less than 15 minutes late and 73.1% reached their destination on time; 4.1% were cancelled.

Nationally that month, 72.2% of flights departed on time and 72.8% arrived on time, so CMI departures were 2.3 points above the national departure figure.

A year earlier, in June 2025, the airport had 132 departures with 75.8% leaving on time: a change of −1.3 points, with flights up 10%.

Flights arriving at CMI that month were on time 71.7% of the time (145 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 62%, late-arriving aircraft 19% and national aviation system 15%.

On time 73.1%
Arrived 15+ minutes late 22.8%
Cancelled 4.1%
Diverted 0.0%

Every scheduled departure from CMI in June 2026, judged by arrival at the destination.

June 2026 against a year earlier, the airport's year and the nation

Measure	Jun 2026	Jun 2025	CMI, 12 months to Jul 2026	All reported flights, Jun 2026
Departed on time	74.5%	75.8%	79.7%	72.2%
Arrived on time	73.1%	71.2%	77.6%	72.8%
Cancelled	4.1%	1.5%	3.0%	1.6%
Average departure delay (late minutes only)	39.6 min	33.5 min	18.0 min	20.6 min
Scheduled departures a day	5	4	5	20,253
Scheduled departures	145	132	1,785	607,577

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	145	100%	73.1%	27.8 min	4.1%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
CMI–ORD	Champaign/Urbana to Chicago	90	71.1%	30.4 min	4.4%
CMI–DFW	Champaign/Urbana to Dallas/Fort Worth	55	76.4%	23.6 min	3.6%

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), June 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2026	Minutes
Air carrier	62.2%	30.8%	3,514
Late-arriving aircraft	19.4%	42.1%	1,096
National Aviation System	15.0%	20.3%	848
Extreme weather	3.4%	6.7%	194
Security	0.0%	0.1%	0

5,652 delay minutes on 33 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 June 2026?

74.5% of 145 scheduled domestic departures left less than 15 minutes late, and 73.1% reached their destination on time. The national figures that month were 72.2% and 72.8%.

How does that compare with a year earlier?

In June 2025, 75.8% of 132 departures left on time and 1.5% were cancelled, against 74.5% and 4.1% in June 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 2026; 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.