Gerald R. Ford International in August 2025

80.5%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 1,567 domestic departures from Gerald R. Ford International (GRR). 80.5% left less than 15 minutes late and 77.9% reached their destination on time; 1.0% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so GRR departures were 3.7 points above the national departure figure.

A year earlier, in August 2024, the airport had 1,473 departures with 77.4% leaving on time: a change of +3.1 points, with flights up 6%.

Flights arriving at GRR that month were on time 76.1% of the time (1,567 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, late-arriving aircraft 29% and national aviation system 22%.

On time 77.9%
Arrived 15+ minutes late 20.8%
Cancelled 1.0%
Diverted 0.3%

Every scheduled departure from GRR 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	GRR, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	80.5%	77.4%	78.2%	76.8%
Arrived on time	77.9%	76.4%	74.7%	76.3%
Cancelled	1.0%	2.5%	1.9%	1.1%
Average departure delay (late minutes only)	17.5 min	15.9 min	19.5 min	17.6 min
Scheduled departures a day	52	49	53	20,079
Scheduled departures	1,567	1,473	19,275	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	248	16%	72.2%	16.6 min	0.8%
YX Republic Airline	245	16%	80.0%	-0.7 min	2.0%
AA American Airlines	238	15%	76.1%	26.9 min	2.1%
G4 Allegiant Air	184	12%	77.2%	6.3 min	0.0%
WN Southwest Airlines	184	12%	75.5%	12.0 min	0.0%
DL Delta Air Lines	168	11%	86.9%	-8.5 min	1.2%
UA United Airlines	132	8%	78.0%	6.5 min	1.5%
OH PSA Airlines	63	4%	84.1%	8.5 min	0.0%
MQ Envoy Air	55	4%	78.2%	3.7 min	0.0%
F9 Frontier Airlines	50	3%	78.0%	4.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GRR–ORD	Grand Rapids to Chicago	315	67.3%	17.5 min	1.6%
GRR–ATL	Grand Rapids to Atlanta	127	90.6%	-12.6 min	1.6%
GRR–DEN	Grand Rapids to Denver	121	81.8%	9.8 min	0.0%
GRR–LGA	Grand Rapids to New York	113	83.2%	-2.7 min	1.8%
GRR–MSP	Grand Rapids to Minneapolis	113	80.5%	0.7 min	0.0%
GRR–DFW	Grand Rapids to Dallas/Fort Worth	98	66.3%	61.3 min	4.1%
GRR–DTW	Grand Rapids to Detroit	93	87.1%	-0.8 min	0.0%
GRR–MDW	Grand Rapids to Chicago	87	73.6%	11.6 min	0.0%
GRR–CLT	Grand Rapids to Charlotte	85	88.2%	-1.4 min	1.2%
GRR–EWR	Grand Rapids to Newark	68	76.5%	5.4 min	2.9%
GRR–DCA	Grand Rapids to Washington	62	83.9%	8.9 min	0.0%
GRR–LAS	Grand Rapids to Las Vegas	41	75.6%	7.2 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), August 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	42.5%	33.1%	11,596
Late-arriving aircraft	28.6%	40.5%	7,798
National Aviation System	22.0%	19.2%	5,992
Extreme weather	6.9%	7.0%	1,882
Security	0.0%	0.1%	0

27,268 delay minutes on 326 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 August 2025?

80.5% of 1,567 scheduled domestic departures left less than 15 minutes late, and 77.9% 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, 77.4% of 1,473 departures left on time and 2.5% were cancelled, against 80.5% and 1.0% 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 GRR · methodology · corrections.