MBS International in April 2025

82.8%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 April 2025, reporting carriers scheduled 192 domestic departures from MBS International (MBS). 82.8% left less than 15 minutes late and 79.7% reached their destination on time; 1.0% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so MBS departures were 2.2 points above the national departure figure.

A year earlier, in April 2024, the airport had 168 departures with 88.1% leaving on time: a change of −5.3 points, with flights up 14%.

Flights arriving at MBS that month were on time 85.9% of the time (192 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 56%, extreme weather 18% and national aviation system 18%.

On time 79.7%
Arrived 15+ minutes late 19.3%
Cancelled 1.0%
Diverted 0.0%

Every scheduled departure from MBS in April 2025, judged by arrival at the destination.

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

Measure	Apr 2025	Apr 2024	MBS, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	82.8%	88.1%	76.6%	80.6%
Arrived on time	79.7%	86.9%	72.9%	79.5%
Cancelled	1.0%	0.0%	2.0%	0.8%
Average departure delay (late minutes only)	14.8 min	11.1 min	27.1 min	14.1 min
Scheduled departures a day	6	6	6	19,465
Scheduled departures	192	168	2,061	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	192	100%	79.7%	7.8 min	1.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MBS–DTW	Saginaw/Bay City/Midland to Detroit	102	79.4%	7.1 min	1.0%
MBS–ORD	Saginaw/Bay City/Midland to Chicago	90	80.0%	8.5 min	1.1%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	56.1%	32.7%	1,693
Late-arriving aircraft	8.2%	39.4%	249
National Aviation System	17.7%	22.2%	534
Extreme weather	18.0%	5.5%	544
Security	0.0%	0.2%	0

3,020 delay minutes on 37 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 MBS on time in April 2025?

82.8% of 192 scheduled domestic departures left less than 15 minutes late, and 79.7% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 88.1% of 168 departures left on time and 0.0% were cancelled, against 82.8% and 1.0% in April 2025.

Provenance

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