MBS International in May 2026

82.0%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 May 2026, reporting carriers scheduled 161 domestic departures from MBS International (MBS). 82.0% left less than 15 minutes late and 79.5% reached their destination on time; 0.0% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so MBS departures were 4.9 points above the national departure figure.

A year earlier, in May 2025, the airport had 211 departures with 90.0% leaving on time: a change of −8.0 points, with flights down 24%.

Flights arriving at MBS that month were on time 77.8% of the time (162 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, air carrier 23% and national aviation system 15%.

On time 79.5%
Arrived 15+ minutes late 19.9%
Cancelled 0.0%
Diverted 0.6%

Every scheduled departure from MBS in May 2026, judged by arrival at the destination.

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

Measure	May 2026	May 2025	MBS, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	82.0%	90.0%	76.6%	77.1%
Arrived on time	79.5%	88.6%	72.9%	77.6%
Cancelled	0.0%	0.0%	2.0%	0.9%
Average departure delay (late minutes only)	20.8 min	8.6 min	27.1 min	16.0 min
Scheduled departures a day	5	7	6	20,391
Scheduled departures	161	211	2,061	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	161	100%	79.5%	11.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MBS–ORD	Saginaw/Bay City/Midland to Chicago	93	69.9%	27.3 min	0.0%
MBS–DTW	Saginaw/Bay City/Midland to Detroit	68	92.6%	-11.1 min	0.0%

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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	23.2%	33.0%	777
Late-arriving aircraft	49.8%	40.4%	1,668
National Aviation System	15.2%	20.5%	510
Extreme weather	11.8%	6.0%	394
Security	0.0%	0.1%	0

3,349 delay minutes on 32 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 May 2026?

82.0% of 161 scheduled domestic departures left less than 15 minutes late, and 79.5% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 90.0% of 211 departures left on time and 0.0% were cancelled, against 82.0% and 0.0% in May 2026.

Provenance

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