Central Il Regional Airport at Bloomington in December 2025

80.7%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 December 2025, reporting carriers scheduled 166 domestic departures from Central Il Regional Airport at Bloomington (BMI). 80.7% left less than 15 minutes late and 73.5% reached their destination on time; 1.8% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so BMI departures were 8.7 points above the national departure figure.

A year earlier, in December 2024, the airport had 149 departures with 88.6% leaving on time: a change of −7.9 points, with flights up 11%.

Flights arriving at BMI that month were on time 72.9% of the time (166 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, national aviation system 29% and air carrier 22%.

On time 73.5%
Arrived 15+ minutes late 24.7%
Cancelled 1.8%
Diverted 0.0%

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

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

Measure	Dec 2025	Dec 2024	BMI, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	80.7%	88.6%	82.8%	72.0%
Arrived on time	73.5%	84.6%	81.0%	71.9%
Cancelled	1.8%	0.0%	2.1%	1.5%
Average departure delay (late minutes only)	17.1 min	9.7 min	15.6 min	21.2 min
Scheduled departures a day	6	5	5	19,410
Scheduled departures	166	149	1,953	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	141	85%	74.5%	8.7 min	2.1%
G4 Allegiant Air	25	15%	68.0%	9.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BMI–ORD	Bloomington/Normal to Chicago	79	62.0%	24.6 min	2.5%
BMI–DFW	Bloomington/Normal to Dallas/Fort Worth	62	90.3%	-11.4 min	1.6%
BMI–SFB	Bloomington/Normal to Sanford	13	53.8%	21.4 min	0.0%
BMI–PIE	Bloomington/Normal to St. Petersburg	12	83.3%	-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), December 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2025	Minutes
Air carrier	21.6%	33.3%	699
Late-arriving aircraft	43.1%	41.1%	1,395
National Aviation System	29.0%	19.1%	939
Extreme weather	6.3%	6.4%	205
Security	0.0%	0.2%	0

3,238 delay minutes on 41 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 December 2025?

80.7% of 166 scheduled domestic departures left less than 15 minutes late, and 73.5% reached their destination on time. The national figures that month were 72.0% and 71.9%.

How does that compare with a year earlier?

In December 2024, 88.6% of 149 departures left on time and 0.0% were cancelled, against 80.7% and 1.8% in December 2025.

Provenance

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