Central Il Regional Airport at Bloomington in August 2025

83.8%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 August 2025, reporting carriers scheduled 204 domestic departures from Central Il Regional Airport at Bloomington (BMI). 83.8% left less than 15 minutes late and 85.8% reached their destination on time; 1.0% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so BMI departures were 7.0 points above the national departure figure.

A year earlier, in August 2024, the airport had 151 departures with 88.1% leaving on time: a change of −4.3 points, with flights up 35%.

Flights arriving at BMI that month were on time 78.4% of the time (204 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, extreme weather 25% and air carrier 19%.

On time 85.8%
Arrived 15+ minutes late 12.3%
Cancelled 1.0%
Diverted 1.0%

Every scheduled departure from BMI in August 2025, judged by arrival at the destination.

August 2025 against a year earlier, the airport's year and the nation

Measure	Aug 2025	Aug 2024	BMI, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	83.8%	88.1%	82.8%	76.8%
Arrived on time	85.8%	85.4%	81.0%	76.3%
Cancelled	1.0%	0.7%	2.1%	1.1%
Average departure delay (late minutes only)	10.4 min	14.9 min	15.6 min	17.6 min
Scheduled departures a day	7	5	5	20,079
Scheduled departures	204	151	1,953	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	124	61%	87.9%	-7.2 min	1.6%
OO SkyWest Airlines	62	30%	88.7%	-6.1 min	0.0%
G4 Allegiant Air	18	9%	61.1%	40.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BMI–ATL	Bloomington/Normal to Atlanta	62	88.7%	-6.1 min	0.0%
BMI–DFW	Bloomington/Normal to Dallas/Fort Worth	62	85.5%	-2.5 min	0.0%
BMI–ORD	Bloomington/Normal to Chicago	62	90.3%	-12.1 min	3.2%
BMI–PIE	Bloomington/Normal to St. Petersburg	9	77.8%	4.8 min	0.0%
BMI–SFB	Bloomington/Normal to Sanford	9	44.4%	76.4 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), August 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	19.0%	33.1%	354
Late-arriving aircraft	43.8%	40.5%	815
National Aviation System	11.9%	19.2%	221
Extreme weather	25.2%	7.0%	469
Security	0.0%	0.1%	0

1,859 delay minutes on 25 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 BMI on time in August 2025?

83.8% of 204 scheduled domestic departures left less than 15 minutes late, and 85.8% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 88.1% of 151 departures left on time and 0.7% were cancelled, against 83.8% and 1.0% in August 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BMI · methodology · corrections.