Robert Gray AAF in April 2025

74.0%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 April 2025, reporting carriers scheduled 150 domestic departures from Robert Gray AAF (GRK). 74.0% left less than 15 minutes late and 72.7% reached their destination on time; 6.0% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so GRK departures were 6.6 points below the national departure figure.

A year earlier, in April 2024, the airport had 147 departures with 78.9% leaving on time: a change of −4.9 points, with flights up 2%.

Flights arriving at GRK that month were on time 74.0% of the time (150 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, extreme weather 32%, air carrier 26% and national aviation system 22%.

On time 72.7%
Arrived 15+ minutes late 21.3%
Cancelled 6.0%
Diverted 0.0%

Every scheduled departure from GRK in April 2025, judged by arrival at the destination.

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

Measure	Apr 2025	Apr 2024	GRK, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	74.0%	78.9%	78.7%	80.6%
Arrived on time	72.7%	75.5%	77.2%	79.5%
Cancelled	6.0%	4.1%	4.5%	0.8%
Average departure delay (late minutes only)	12.4 min	27.6 min	14.8 min	14.1 min
Scheduled departures a day	5	5	5	19,465
Scheduled departures	150	147	1,907	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	93	62%	69.9%	10.9 min	4.3%
OO SkyWest Airlines	57	38%	77.2%	-2.8 min	8.8%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GRK–DFW	Killeen to Dallas/Fort Worth	150	72.7%	5.8 min	6.0%

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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	25.5%	32.7%	474
Late-arriving aircraft	15.7%	39.4%	292
National Aviation System	21.6%	22.2%	401
Extreme weather	31.7%	5.5%	590
Security	5.5%	0.2%	103

1,860 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 GRK on time in April 2025?

74.0% of 150 scheduled domestic departures left less than 15 minutes late, and 72.7% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 78.9% of 147 departures left on time and 4.1% were cancelled, against 74.0% and 6.0% in April 2025.

Provenance

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