Kalamazoo/Battle Creek International in June 2025

79.2%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 June 2025, reporting carriers scheduled 159 domestic departures from Kalamazoo/Battle Creek International (AZO). 79.2% left less than 15 minutes late and 78.0% reached their destination on time; 1.3% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so AZO departures were 7.8 points above the national departure figure.

A year earlier, in June 2024, the airport had 84 departures with 78.6% leaving on time: a change of +0.6 points, with flights up 89%.

Flights arriving at AZO that month were on time 70.6% of the time (160 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 65%, national aviation system 16% and late-arriving aircraft 11%.

On time 78.0%
Arrived 15+ minutes late 20.8%
Cancelled 1.3%
Diverted 0.0%

Every scheduled departure from AZO in June 2025, judged by arrival at the destination.

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

Measure	Jun 2025	Jun 2024	AZO, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	79.2%	78.6%	77.6%	71.4%
Arrived on time	78.0%	76.2%	75.6%	70.3%
Cancelled	1.3%	2.4%	3.4%	1.6%
Average departure delay (late minutes only)	21.5 min	25.6 min	22.0 min	22.1 min
Scheduled departures a day	5	3	6	20,386
Scheduled departures	159	84	1,991	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	86	54%	81.4%	19.1 min	0.0%
MQ Envoy Air	73	46%	74.0%	6.9 min	2.7%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
AZO–DTW	Kalamazoo to Detroit	86	81.4%	19.1 min	0.0%
AZO–ORD	Kalamazoo to Chicago	73	74.0%	6.9 min	2.7%

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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	64.6%	31.6%	2,285
Late-arriving aircraft	10.9%	40.6%	384
National Aviation System	15.5%	20.9%	547
Extreme weather	9.1%	6.9%	323
Security	0.0%	0.2%	0

3,539 delay minutes on 33 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 AZO on time in June 2025?

79.2% of 159 scheduled domestic departures left less than 15 minutes late, and 78.0% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 78.6% of 84 departures left on time and 2.4% were cancelled, against 79.2% and 1.3% in June 2025.

Provenance

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