Kalamazoo/Battle Creek International in July 2025

77.3%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 July 2025, reporting carriers scheduled 176 domestic departures from Kalamazoo/Battle Creek International (AZO). 77.3% left less than 15 minutes late and 75.6% reached their destination on time; 2.8% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so AZO departures were 7.6 points above the national departure figure.

A year earlier, in July 2024, the airport had 85 departures with 75.3% leaving on time: a change of +2.0 points, with flights up 107%.

Flights arriving at AZO that month were on time 63.1% of the time (176 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 67%, late-arriving aircraft 21% and national aviation system 10%.

On time 75.6%
Arrived 15+ minutes late 21.6%
Cancelled 2.8%
Diverted 0.0%

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

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

Measure	Jul 2025	Jul 2024	AZO, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	77.3%	75.3%	77.6%	69.7%
Arrived on time	75.6%	80.0%	75.6%	69.0%
Cancelled	2.8%	0.0%	3.4%	2.5%
Average departure delay (late minutes only)	15.6 min	34.6 min	22.0 min	24.3 min
Scheduled departures a day	6	3	6	21,048
Scheduled departures	176	85	1,991	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	88	50%	76.1%	-0.5 min	4.5%
OO SkyWest Airlines	88	50%	75.0%	13.5 min	1.1%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
AZO–DTW	Kalamazoo to Detroit	88	75.0%	13.5 min	1.1%
AZO–ORD	Kalamazoo to Chicago	88	76.1%	-0.5 min	4.5%

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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	66.9%	31.1%	1,774
Late-arriving aircraft	20.9%	40.8%	553
National Aviation System	9.8%	20.7%	261
Extreme weather	2.3%	7.3%	62
Security	0.0%	0.1%	0

2,650 delay minutes on 38 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 July 2025?

77.3% of 176 scheduled domestic departures left less than 15 minutes late, and 75.6% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 75.3% of 85 departures left on time and 0.0% were cancelled, against 77.3% and 2.8% in July 2025.

Provenance

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