Gerald R. Ford International in May 2026

84.1%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 1,726 domestic departures from Gerald R. Ford International (GRR). 84.1% left less than 15 minutes late and 81.6% reached their destination on time; 0.8% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so GRR departures were 7.0 points above the national departure figure.

A year earlier, in May 2025, the airport had 1,530 departures with 83.0% leaving on time: a change of +1.1 points, with flights up 13%.

Flights arriving at GRR that month were on time 78.4% of the time (1,723 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, late-arriving aircraft 30% and extreme weather 20%.

On time 81.6%
Arrived 15+ minutes late 17.5%
Cancelled 0.8%
Diverted 0.2%

Every scheduled departure from GRR 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	GRR, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	84.1%	83.0%	78.2%	77.1%
Arrived on time	81.6%	80.5%	74.7%	77.6%
Cancelled	0.8%	1.4%	1.9%	0.9%
Average departure delay (late minutes only)	15.2 min	12.9 min	19.5 min	16.0 min
Scheduled departures a day	58	51	53	20,391
Scheduled departures	1,726	1,530	19,275	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	383	22%	83.0%	6.6 min	1.0%
AA American Airlines	257	15%	79.4%	20.3 min	1.2%
YX Republic Airline	213	12%	82.2%	1.1 min	0.5%
G4 Allegiant Air	181	10%	82.9%	-0.4 min	0.0%
WN Southwest Airlines	169	10%	82.8%	1.1 min	0.0%
UA United Airlines	154	9%	73.4%	12.6 min	0.0%
DL Delta Air Lines	149	9%	91.9%	-10.2 min	0.0%
OH PSA Airlines	104	6%	70.2%	10.2 min	2.9%
MQ Envoy Air	89	5%	82.0%	2.3 min	2.2%
F9 Frontier Airlines	27	2%	92.6%	-19.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GRR–ORD	Grand Rapids to Chicago	421	76.5%	14.4 min	1.2%
GRR–DTW	Grand Rapids to Detroit	186	87.1%	1.0 min	0.5%
GRR–ATL	Grand Rapids to Atlanta	118	89.8%	-10.1 min	0.0%
GRR–MSP	Grand Rapids to Minneapolis	115	91.3%	-5.0 min	0.0%
GRR–DEN	Grand Rapids to Denver	106	77.4%	7.2 min	0.0%
GRR–CLT	Grand Rapids to Charlotte	93	81.7%	8.5 min	0.0%
GRR–DFW	Grand Rapids to Dallas/Fort Worth	90	67.8%	30.2 min	3.3%
GRR–MDW	Grand Rapids to Chicago	87	83.9%	0.7 min	0.0%
GRR–EWR	Grand Rapids to Newark	72	91.7%	-7.9 min	0.0%
GRR–DCA	Grand Rapids to Washington	63	69.8%	11.6 min	3.2%
GRR–LGA	Grand Rapids to New York	62	80.6%	3.8 min	1.6%
GRR–PHL	Grand Rapids to Philadelphia	43	72.1%	7.3 min	2.3%

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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	35.7%	33.0%	9,084
Late-arriving aircraft	30.1%	40.4%	7,641
National Aviation System	14.5%	20.5%	3,699
Extreme weather	19.7%	6.0%	5,000
Security	0.0%	0.1%	0

25,424 delay minutes on 302 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 2026?

84.1% of 1,726 scheduled domestic departures left less than 15 minutes late, and 81.6% 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, 83.0% of 1,530 departures left on time and 1.4% were cancelled, against 84.1% and 0.8% 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 GRR · methodology · corrections.