MBS International in August 2025

82.5%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 August 2025, reporting carriers scheduled 211 domestic departures from MBS International (MBS). 82.5% left less than 15 minutes late and 79.1% reached their destination on time; 1.4% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so MBS departures were 5.7 points above the national departure figure.

A year earlier, in August 2024, the airport had 200 departures with 81.0% leaving on time: a change of +1.5 points, with flights up 5%.

Flights arriving at MBS that month were on time 76.3% of the time (211 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 55%, extreme weather 29% and late-arriving aircraft 9%.

On time 79.1%
Arrived 15+ minutes late 19.4%
Cancelled 1.4%
Diverted 0.0%

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

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

Measure	Aug 2025	Aug 2024	MBS, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	82.5%	81.0%	76.6%	76.8%
Arrived on time	79.1%	78.5%	72.9%	76.3%
Cancelled	1.4%	0.5%	2.0%	1.1%
Average departure delay (late minutes only)	17.9 min	21.6 min	27.1 min	17.6 min
Scheduled departures a day	7	7	6	20,079
Scheduled departures	211	200	2,061	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	211	100%	79.1%	8.9 min	1.4%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MBS–DTW	Saginaw/Bay City/Midland to Detroit	118	83.1%	4.6 min	0.0%
MBS–ORD	Saginaw/Bay City/Midland to Chicago	93	74.2%	14.5 min	3.2%

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), August 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	55.1%	33.1%	2,028
Late-arriving aircraft	8.7%	40.5%	320
National Aviation System	7.5%	19.2%	276
Extreme weather	28.7%	7.0%	1,054
Security	0.0%	0.1%	0

3,678 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 MBS on time in August 2025?

82.5% of 211 scheduled domestic departures left less than 15 minutes late, and 79.1% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 81.0% of 200 departures left on time and 0.5% were cancelled, against 82.5% and 1.4% in August 2025.

Provenance

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