Robert Gray AAF in December 2023

88.1%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 December 2023, reporting carriers scheduled 134 domestic departures from Robert Gray AAF (GRK). 88.1% left less than 15 minutes late and 88.1% reached their destination on time; 0.0% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so GRK departures were 5.0 points above the national departure figure.

Flights arriving at GRK that month were on time 90.3% of the time (134 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 37%, late-arriving aircraft 37% and national aviation system 23%.

On time 88.1%
Arrived 15+ minutes late 11.9%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from GRK in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	GRK, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	88.1%	—	78.7%	83.1%
Arrived on time	88.1%	—	77.2%	83.8%
Cancelled	0.0%	—	4.5%	0.4%
Average departure delay (late minutes only)	4.7 min	—	14.8 min	11.6 min
Scheduled departures a day	5	—	5	19,013
Scheduled departures	134	—	1,907	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	109	81%	86.2%	-3.0 min	0.0%
OO SkyWest Airlines	25	19%	96.0%	-9.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GRK–DFW	Killeen to Dallas/Fort Worth	134	88.1%	-4.2 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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	36.5%	37.1%	168
Late-arriving aircraft	36.5%	38.8%	168
National Aviation System	23.0%	17.6%	106
Extreme weather	0.9%	6.2%	4
Security	3.0%	0.3%	14

460 delay minutes on 16 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 December 2023?

88.1% of 134 scheduled domestic departures left less than 15 minutes late, and 88.1% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2023; 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.