Best Time to Fly GRK to DFW: On-Time Stats by Hour & Airline
Robert Gray AAF → Dallas/Fort Worth International
Data through July 2026 · Last updated October 18, 2026
1,907 flights were scheduled from Killeen (GRK) to Dallas/Fort Worth (DFW) in the last 12 months, and 81.1% of those that flew arrived on time, 3.4 points above the US average of 77.6%.
Envoy Air was the most punctual of the 2 airlines on the route at 82.1%, while SkyWest Airlines trailed at 78.8%.
January has been the best month (85% on time) and Monday the weakest day of the week (77%).
4.5% of flights were cancelled, versus 1.8% nationally.
GRK to DFW on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Air | 82.1% | 71 min | 4.1% | 1,307 |
| SkyWest Airlines | 78.8% | 89 min | 5.3% | 600 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly GRK to DFW
On-time arrival % by scheduled departure hour (local time), 3,734 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.9% | 1.6% | 582 |
| 6am–7am | 86.3% | 2.2% | 359 |
| 7am–8am | 89.2% | 4.4% | 204 |
| 8am–9am | 85.0% | 0.0% | 40 |
| 9am–10am | Limited data | 18 | |
| 10am–11am | 85.9% | 3.2% | 713 |
| 11am–12pm | 78.7% | 4.6% | 197 |
| 12pm–1pm | 75.5% | 3.4% | 472 |
| 1pm–2pm | Limited data | 13 | |
| 2pm–3pm | Limited data | 13 | |
| 3pm–4pm | 75.5% | 2.6% | 155 |
| 4pm–5pm | 63.8% | 2.7% | 298 |
| 5pm–6pm | 74.8% | 8.7% | 218 |
| 6pm–7pm | 69.8% | 3.8% | 210 |
| 7pm–8pm | 75.9% | 8.6% | 209 |
| 8pm–9pm | 57.6% | 0.0% | 33 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on GRK to DFW
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 84.4% | +3.6 pts | 0.0% | 77 |
| Christmas & New Year (Dec 20 - Jan 3) | 84.7% | +3.8 pts | 2.0% | 153 |
| Summer peak (Jun 15 - Aug 15) | 78.8% | -2.0 pts | 2.0% | 637 |
| All other days | 80.8% | — | 4.2% | 2,867 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).