Central Il Regional Airport at Bloomington in September 2024

93.5%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 September 2024, reporting carriers scheduled 138 domestic departures from Central Il Regional Airport at Bloomington (BMI). 93.5% left less than 15 minutes late and 88.4% reached their destination on time; 0.7% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so BMI departures were 9.1 points above the national departure figure.

A year earlier, in September 2023, the airport had 145 departures with 91.7% leaving on time: a change of +1.8 points, with flights down 5%.

Flights arriving at BMI that month were on time 92.8% of the time (138 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 59%, national aviation system 34% and extreme weather 5%.

On time 88.4%
Arrived 15+ minutes late 10.9%
Cancelled 0.7%
Diverted 0.0%

Every scheduled departure from BMI in September 2024, judged by arrival at the destination.

September 2024 against a year earlier, the airport's year and the nation

Measure	Sep 2024	Sep 2023	BMI, 12 months to Jul 2026	All reported flights, Sep 2024
Departed on time	93.5%	91.7%	82.8%	84.4%
Arrived on time	88.4%	90.3%	81.0%	83.9%
Cancelled	0.7%	0.0%	2.1%	0.6%
Average departure delay (late minutes only)	5.8 min	6.2 min	15.6 min	10.6 min
Scheduled departures a day	5	5	5	19,421
Scheduled departures	138	145	1,953	582,622

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
9E Endeavor Air	60	43%	90.0%	-9.9 min	1.7%
MQ Envoy Air	60	43%	85.0%	-7.8 min	0.0%
G4 Allegiant Air	18	13%	94.4%	13.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BMI–ATL	Bloomington/Normal to Atlanta	60	90.0%	-9.9 min	1.7%
BMI–DFW	Bloomington/Normal to Dallas/Fort Worth	60	85.0%	-7.8 min	0.0%
BMI–PIE	Bloomington/Normal to St. Petersburg	9	88.9%	38.3 min	0.0%
BMI–SFB	Bloomington/Normal to Sanford	9	100.0%	-11.7 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), September 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2024	Minutes
Air carrier	1.8%	38.6%	16
Late-arriving aircraft	58.7%	38.4%	515
National Aviation System	34.3%	18.2%	301
Extreme weather	5.2%	4.8%	46
Security	0.0%	0.1%	0

878 delay minutes on 15 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 September 2024?

93.5% of 138 scheduled domestic departures left less than 15 minutes late, and 88.4% reached their destination on time. The national figures that month were 84.4% and 83.9%.

How does that compare with a year earlier?

In September 2023, 91.7% of 145 departures left on time and 0.0% were cancelled, against 93.5% and 0.7% in September 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2024; 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.