University of Illinois/Willard in March 2026

77.4%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 March 2026, reporting carriers scheduled 146 domestic departures from University of Illinois/Willard (CMI). 77.4% left less than 15 minutes late and 76.7% reached their destination on time; 3.4% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so CMI departures were 4.6 points above the national departure figure.

A year earlier, in March 2025, the airport had 116 departures with 80.2% leaving on time: a change of −2.8 points, with flights up 26%.

Flights arriving at CMI that month were on time 77.4% of the time (146 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, national aviation system 43% and air carrier 13%.

On time 76.7%
Arrived 15+ minutes late 19.9%
Cancelled 3.4%
Diverted 0.0%

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

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

Measure	Mar 2026	Mar 2025	CMI, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	77.4%	80.2%	79.7%	72.8%
Arrived on time	76.7%	76.7%	77.6%	73.2%
Cancelled	3.4%	0.9%	3.0%	2.9%
Average departure delay (late minutes only)	16.3 min	18.4 min	18.0 min	20.3 min
Scheduled departures a day	5	4	5	20,403
Scheduled departures	146	116	1,785	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	146	100%	76.7%	2.8 min	3.4%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
CMI–ORD	Champaign/Urbana to Chicago	84	69.0%	15.7 min	6.0%
CMI–DFW	Champaign/Urbana to Dallas/Fort Worth	62	87.1%	-13.5 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), March 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	12.9%	33.5%	302
Late-arriving aircraft	44.0%	39.3%	1,034
National Aviation System	42.7%	21.0%	1,003
Extreme weather	0.5%	5.9%	11
Security	0.0%	0.2%	0

2,350 delay minutes on 29 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 March 2026?

77.4% of 146 scheduled domestic departures left less than 15 minutes late, and 76.7% reached their destination on time. The national figures that month were 72.8% and 73.2%.

How does that compare with a year earlier?

In March 2025, 80.2% of 116 departures left on time and 0.9% were cancelled, against 77.4% and 3.4% in March 2026.

Provenance

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