Route reliability record
GRK→DFW
Killeen to Dallas-Fort Worth
- Flights
- 1,861
- Period
- July 2025 to June 2026
- Distance
- 134 mi
- Carriers
- 2
This route carries a cancellation problem, not just a delay problem: 4.7% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about four flights in five arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,861 GRK to DFW flights, of which Envoy Air flew 1,270 at 81.2% on time.
Best time to fly GRK to DFW: a 5am–8am departure, ideally on a Tuesday. Flights in that window arrived on time 89.8% of the time and Tuesday flights 86.9%, against 80.5% for the route overall.
The US average over the same twelve months is 77.6%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.5%
Arrivals under 15 minutes late, of 1,770 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
4.73%
National rate is 1.81%
Best carrier
Envoy
81.2% on time across 1,270 flights
These figures cover 1,861 flights between July 2025 and June 2026. The median arrival is 6 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Which airline is most reliable on GRK to DFW
The two carriers here are closely matched: 2 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air | 1,270 | 81.2% | 68 min | 4.41% | B− |
| SkyWest Airlines | 591 | 78.9% | 89 min | 5.41% | B− |
SkyWest Airlines cancels 5.4% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Flight by flight
Flights on GRK to DFW
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
Best ways to make this trip
The most reliable ways to fly Killeen to Dallas-Fort Worth
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 2 of the top 4 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. ACT → DFWWaco to Dallas-Fort Worth | SkyWest Airlines | 80.1% | 84.7% | 5.47% | 5am–8am, Tue | — |
| 2. ACT → DFWWaco to Dallas-Fort Worth | Envoy Air | 79.2% | 82.1% | 3.57% | 11am–2pm, Tue | — |
| 3. GRK → DFWKilleen to Dallas-Fort Worth | Envoy Air | 77.6% | 81.2% | 4.41% | 5am–8am, Fri | MQ 3919 05:16 |
| 4. GRK → DFWKilleen to Dallas-Fort Worth | SkyWest Airlines | 74.6% | 78.9% | 5.41% | 8am–11am, Tue | — |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 23 points, against 2 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am550 flights89.8%
- 8am–11am374 flights88.2%
- 11am–2pm338 flights75.7%
- 2pm–5pm284 flights67.2%
- 5pm–8pm252 flights72.6%
- 8pm–5am63 flights68.3%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 89.8% of the time, against 67.2% for the afternoon window. That is 23 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 550 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 14 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
August is the worst month at 72.9% on time, 14 points below January, the best at 86.4%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. June was the busiest month here, with 180 flights.
Across the week, Tuesday is the strongest day at 86.9% on time and Saturday the weakest at 75.7%. 11 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
One category carries most of the weight here. Late-arriving aircraft accounts for 43% of the 26,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 43%Late-arriving aircraft
- 26%Carrier
- 19%Extreme weather
- 11%National Airspace System
Extreme weather accounts for 19% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.1 times the usual weather exposure. The split is drawn from 25,922 reported delay minutes.
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 26,000 reported delay minutes here, that single category outweighs weather by 2 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit.
Cancellations run at 4.73%, against 1.81% nationally. That is about one flight in twenty cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here actually costs
7.6% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 134 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg runs 77.8% on time across 1,862 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,861 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in DFW after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 4.73% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,770 completed flights over 12 months sit behind that.
Common questions
GRK to DFW questions
How often is GRK to DFW delayed?
About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 19.5% of the 1,861 flights in this analysis, against 22.4% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on GRK to DFW?
Envoy Air leads at 81.2% on time across 1,270 flights. SkyWest Airlines is at the other end on 78.9%, a gap of 2 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on GRK to DFW?
The 5am–8am departure window is the strongest at 89.8% on time. The 2pm–5pm window is the weakest at 67.2%, 23 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are August delays on GRK to DFW?
August is the weakest month at 72.9% on time, compared with 86.4% in January. Across the year that is 14 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- DFW to GRK — the return legseparate record
- Dallas/Fort Worth International (DFW) delay statistics
- Envoy Air on GRK to DFW81.2%
- SkyWest Airlines on GRK to DFW78.9%
- ORD to DFW, a related route69.7%
- LGA to DFW, a related route70.8%
- ATL to DFW, a related route74.3%
- Envoy Air on-time record81.2%
- SkyWest Airlines on-time record78.9%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. GRK to DFW and DFW to GRK are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.