Kalamazoo/Battle Creek International in April 2026

79.4%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 April 2026, reporting carriers scheduled 160 domestic departures from Kalamazoo/Battle Creek International (AZO). 79.4% left less than 15 minutes late and 77.5% reached their destination on time; 4.4% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so AZO departures were level with the national departure figure.

A year earlier, in April 2025, the airport had 85 departures with 95.3% leaving on time: a change of −15.9 points, with flights up 88%.

Flights arriving at AZO that month were on time 75.6% of the time (160 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 37%, late-arriving aircraft 30% and air carrier 20%.

On time 77.5%
Arrived 15+ minutes late 17.5%
Cancelled 4.4%
Diverted 0.6%

Every scheduled departure from AZO in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

Measure	Apr 2026	Apr 2025	AZO, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	79.4%	95.3%	77.6%	79.1%
Arrived on time	77.5%	96.5%	75.6%	78.9%
Cancelled	4.4%	0.0%	3.4%	0.9%
Average departure delay (late minutes only)	17.4 min	2.0 min	22.0 min	14.5 min
Scheduled departures a day	5	3	6	19,931
Scheduled departures	160	85	1,991	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	90	56%	73.3%	8.3 min	5.6%
OO SkyWest Airlines	70	44%	82.9%	4.5 min	2.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
AZO–ORD	Kalamazoo to Chicago	90	73.3%	8.3 min	5.6%
AZO–DTW	Kalamazoo to Detroit	70	82.9%	4.5 min	2.9%

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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	20.1%	33.5%	529
Late-arriving aircraft	29.7%	40.4%	780
National Aviation System	37.1%	21.0%	975
Extreme weather	13.1%	5.0%	345
Security	0.0%	0.1%	0

2,629 delay minutes on 28 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 April 2026?

79.4% of 160 scheduled domestic departures left less than 15 minutes late, and 77.5% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 95.3% of 85 departures left on time and 0.0% were cancelled, against 79.4% and 4.4% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.