Killeen Regional Airport / Robert Gray Army Airfield (GRK): Delays & On-Time Performance
Data through July 2026
Killeen Regional Airport / Robert Gray Army Airfield (GRK) is a tale of two seasons: departures ran 88% on-time in October 2024 but sank to 68% in June 2025. Across the year it averages 81% against a national 78%, over roughly 5 departures a day to 1 destinations.
- Departures on-time
- 81%
- left <15 min late
- Avg dep delay
- 14 min
- Arrivals on-time
- 77%
- Cancelled
- 3.5%
- Destinations
- 1
- nonstop
- Airlines
- 2
Plan your departure from GRK
The choices most likely to improve your odds, based on this airport’s historical record.
- Best departure time
- Around 5 a.m.
- 93% on-time
- Best day to fly
- Tuesday
- 85% on-time
- Cancellation risk
- 3.5%
- above the US average
Monthly on-time trend
Best time of day to depart from GRK
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 18 min |
| Tuesdaybest | 85% | 11 min |
| Wednesday | 79% | 14 min |
| Thursday | 83% | 14 min |
| Friday | 80% | 15 min |
| Saturday | 77% | 16 min |
| Sunday | 79% | 15 min |
Busiest routes from GRK
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| GRK → DFW (Dallas/Fort Worth) | 1,907 | 80% | 15 min |
Where flights into GRK come from
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| DFW (Dallas/Fort Worth) → GRK | 1,908 | 77% | 15 min |
What causes delays at GRK
Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing GRK.
- Late-arriving aircraft43%
- Airline operations30%
- National airspace system12%
- Weather15%
Alternative airports near Killeen
Other airports within 120 miles, compared on departure reliability.
| Airport | Distance | On-time departures | Avg delay |
|---|---|---|---|
| ACT — Waco Regional Airport | 52 mi | 81% | 18 min |
| AUS — Austin Bergstrom International Airport | 61 mi | 77% | 18 min |
| CLL — Easterwood Field | 93 mi | 83% | 17 min |
| SAT — San Antonio International Airport | 113 mi | 82% | 15 min |
Compare the airport-level record first, then check the exact route you plan to book.
Airline performance at GRK
| Airline | On-time departures | Avg delay | Flights |
|---|---|---|---|
| SkyWest Airlines | 82% | 16 min | 1,084 |
| Envoy Air | 81% | 13 min | 2,825 |
Frequently asked questions
- How often are flights delayed at GRK?
- 19% of departures from Killeen Regional Airport / Robert Gray Army Airfield left 15+ minutes late between 2024-07 and 2026-07, with an average departure delay of 14 minutes. The national on-time average over the same period was 78%.
- What is the best time of day to depart from GRK?
- Flights scheduled around 5 a.m. depart on time 93% of the time at GRK, versus 68% around 4 p.m.. Booking before noon is the usual rule of thumb here.
- What is the worst month for delays at GRK?
- In this dataset, June 2025 was the weakest month at GRK, with 68% of departures on time.
- How often are flights cancelled at GRK?
- 3.5% of scheduled departures from GRK were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Related guides
Based on 3,909 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.