Gerald R. Ford International in September 2025

86.3%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 September 2025, reporting carriers scheduled 1,504 domestic departures from Gerald R. Ford International (GRR). 86.3% left less than 15 minutes late and 81.8% reached their destination on time; 0.7% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so GRR departures were 3.2 points above the national departure figure.

A year earlier, in September 2024, the airport had 1,441 departures with 88.0% leaving on time: a change of −1.7 points, with flights up 4%.

Flights arriving at GRR that month were on time 83.0% of the time (1,507 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, late-arriving aircraft 27% and national aviation system 25%.

On time 81.8%
Arrived 15+ minutes late 17.2%
Cancelled 0.7%
Diverted 0.3%

Every scheduled departure from GRR in September 2025, judged by arrival at the destination.

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

Measure	Sep 2025	Sep 2024	GRR, 12 months to Jul 2026	All reported flights, Sep 2025
Departed on time	86.3%	88.0%	78.2%	83.1%
Arrived on time	81.8%	85.4%	74.7%	82.8%
Cancelled	0.7%	0.5%	1.9%	0.5%
Average departure delay (late minutes only)	12.1 min	8.4 min	19.5 min	12.2 min
Scheduled departures a day	50	48	53	18,748
Scheduled departures	1,504	1,441	19,275	562,439

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	257	17%	85.2%	-4.2 min	0.4%
AA American Airlines	233	15%	78.5%	9.7 min	3.0%
OO SkyWest Airlines	175	12%	78.3%	5.2 min	0.0%
WN Southwest Airlines	175	12%	74.3%	6.6 min	0.0%
DL Delta Air Lines	161	11%	95.0%	-14.4 min	0.0%
UA United Airlines	158	11%	81.0%	3.9 min	0.0%
G4 Allegiant Air	135	9%	81.5%	7.1 min	0.0%
OH PSA Airlines	111	7%	86.5%	6.9 min	0.9%
MQ Envoy Air	70	5%	74.3%	4.6 min	1.4%
F9 Frontier Airlines	29	2%	79.3%	24.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GRR–ORD	Grand Rapids to Chicago	308	71.8%	14.3 min	0.6%
GRR–DEN	Grand Rapids to Denver	114	86.8%	4.9 min	0.0%
GRR–LGA	Grand Rapids to New York	112	89.3%	-5.4 min	0.0%
GRR–ATL	Grand Rapids to Atlanta	111	96.4%	-14.9 min	0.0%
GRR–MSP	Grand Rapids to Minneapolis	107	81.3%	-2.8 min	0.0%
GRR–DFW	Grand Rapids to Dallas/Fort Worth	90	70.0%	14.2 min	6.7%
GRR–DTW	Grand Rapids to Detroit	89	92.1%	-3.9 min	0.0%
GRR–CLT	Grand Rapids to Charlotte	86	91.9%	-12.2 min	0.0%
GRR–MDW	Grand Rapids to Chicago	86	69.8%	8.3 min	0.0%
GRR–EWR	Grand Rapids to Newark	85	82.4%	-5.5 min	1.2%
GRR–DCA	Grand Rapids to Washington	60	86.7%	9.3 min	1.7%
GRR–PHL	Grand Rapids to Philadelphia	57	87.7%	2.0 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), September 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2025	Minutes
Air carrier	36.0%	34.3%	6,789
Late-arriving aircraft	27.2%	37.4%	5,125
National Aviation System	25.0%	22.6%	4,716
Extreme weather	11.9%	5.6%	2,242
Security	0.0%	0.1%	0

18,872 delay minutes on 258 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 GRR on time in September 2025?

86.3% of 1,504 scheduled domestic departures left less than 15 minutes late, and 81.8% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 88.0% of 1,441 departures left on time and 0.5% were cancelled, against 86.3% and 0.7% in September 2025.

Provenance

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