Gerald R. Ford International in May 2025

83.0%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 2025, reporting carriers scheduled 1,530 domestic departures from Gerald R. Ford International (GRR). 83.0% left less than 15 minutes late and 80.5% reached their destination on time; 1.4% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so GRR departures were 6.3 points above the national departure figure.

A year earlier, in May 2024, the airport had 1,442 departures with 81.1% leaving on time: a change of +1.9 points, with flights up 6%.

Flights arriving at GRR that month were on time 75.0% of the time (1,538 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 37%, late-arriving aircraft 30% and national aviation system 28%.

On time 80.5%
Arrived 15+ minutes late 18.0%
Cancelled 1.4%
Diverted 0.1%

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

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

Measure	May 2025	May 2024	GRR, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	83.0%	81.1%	78.2%	76.7%
Arrived on time	80.5%	79.1%	74.7%	75.4%
Cancelled	1.4%	1.5%	1.9%	1.0%
Average departure delay (late minutes only)	12.9 min	15.5 min	19.5 min	17.5 min
Scheduled departures a day	51	48	53	20,188
Scheduled departures	1,530	1,442	19,275	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	297	19%	80.1%	6.8 min	1.0%
DL Delta Air Lines	224	15%	86.6%	-0.7 min	0.0%
G4 Allegiant Air	211	14%	76.3%	4.2 min	0.0%
YX Republic Airline	195	13%	76.4%	3.3 min	5.1%
AA American Airlines	187	12%	78.6%	12.4 min	3.2%
WN Southwest Airlines	167	11%	85.6%	-1.0 min	0.0%
UA United Airlines	113	7%	86.7%	-6.3 min	0.0%
OH PSA Airlines	62	4%	72.6%	13.2 min	1.6%
MQ Envoy Air	42	3%	81.0%	4.3 min	0.0%
F9 Frontier Airlines	32	2%	68.8%	13.7 min	3.1%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GRR–ORD	Grand Rapids to Chicago	294	80.6%	7.1 min	0.7%
GRR–DTW	Grand Rapids to Detroit	138	88.4%	-1.7 min	0.0%
GRR–ATL	Grand Rapids to Atlanta	122	91.0%	-8.4 min	0.0%
GRR–MSP	Grand Rapids to Minneapolis	112	77.7%	10.5 min	0.0%
GRR–DEN	Grand Rapids to Denver	105	81.0%	-2.9 min	1.0%
GRR–LGA	Grand Rapids to New York	94	77.7%	6.2 min	3.2%
GRR–CLT	Grand Rapids to Charlotte	93	84.9%	0.2 min	0.0%
GRR–DFW	Grand Rapids to Dallas/Fort Worth	92	71.7%	26.2 min	6.5%
GRR–MDW	Grand Rapids to Chicago	65	92.3%	-0.4 min	0.0%
GRR–DCA	Grand Rapids to Washington	62	72.6%	13.2 min	1.6%
GRR–EWR	Grand Rapids to Newark	53	62.3%	4.4 min	15.1%
GRR–LAS	Grand Rapids to Las Vegas	51	84.3%	1.0 min	0.0%

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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	36.6%	29.3%	7,381
Late-arriving aircraft	29.7%	37.8%	5,996
National Aviation System	28.1%	25.9%	5,677
Extreme weather	5.6%	6.9%	1,138
Security	0.0%	0.1%	1

20,193 delay minutes on 276 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 May 2025?

83.0% of 1,530 scheduled domestic departures left less than 15 minutes late, and 80.5% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 81.1% of 1,442 departures left on time and 1.5% were cancelled, against 83.0% and 1.4% in May 2025.

Provenance

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