Central Il Regional Airport at Bloomington in May 2025

85.8%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 May 2025, reporting carriers scheduled 169 domestic departures from Central Il Regional Airport at Bloomington (BMI). 85.8% left less than 15 minutes late and 85.2% reached their destination on time; 0.0% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so BMI departures were 9.1 points above the national departure figure.

A year earlier, in May 2024, the airport had 158 departures with 75.9% leaving on time: a change of +9.9 points, with flights up 7%.

Flights arriving at BMI that month were on time 80.5% of the time (169 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 54%, national aviation system 20% and extreme weather 15%.

On time 85.2%
Arrived 15+ minutes late 14.2%
Cancelled 0.0%
Diverted 0.6%

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

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

Measure	May 2025	May 2024	BMI, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	85.8%	75.9%	82.8%	76.7%
Arrived on time	85.2%	69.0%	81.0%	75.4%
Cancelled	0.0%	1.3%	2.1%	1.0%
Average departure delay (late minutes only)	10.8 min	17.7 min	15.6 min	17.5 min
Scheduled departures a day	6	5	5	20,188
Scheduled departures	169	158	1,953	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	150	89%	87.3%	0.0 min	0.0%
G4 Allegiant Air	19	11%	68.4%	26.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BMI–ORD	Bloomington/Normal to Chicago	88	90.9%	-3.2 min	0.0%
BMI–DFW	Bloomington/Normal to Dallas/Fort Worth	62	82.3%	4.6 min	0.0%
BMI–SFB	Bloomington/Normal to Sanford	10	60.0%	46.2 min	0.0%
BMI–PIE	Bloomington/Normal to St. Petersburg	9	77.8%	4.4 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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	11.3%	29.3%	222
Late-arriving aircraft	54.3%	37.8%	1,064
National Aviation System	19.7%	25.9%	386
Extreme weather	14.6%	6.9%	286
Security	0.0%	0.1%	0

1,958 delay minutes on 24 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 May 2025?

85.8% of 169 scheduled domestic departures left less than 15 minutes late, and 85.2% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 75.9% of 158 departures left on time and 1.3% were cancelled, against 85.8% and 0.0% in May 2025.

Provenance

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