Route reliability record
GRK→DFW
Killeen to Dallas-Fort Worth
- Flights
- 1,938
- Period
- September 2025 to August 2026
- Distance
- 134 mi
- Carriers
- 2
This route carries a cancellation problem, not just a delay problem: 4.3% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, more than 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 1,938 GRK to DFW flights, of which Envoy Air flew 1,341 at 83.4% on time.
Best time to fly GRK to DFW: a 8am–11am departure, ideally on a Tuesday. Flights in that window arrived on time 90.4% of the time and Tuesday flights 88.2%, against 82.0% for the route overall.
Set against the rest of the country, this route's record is 5 points better than the US average of 77.3%. That gap is worth roughly 47 fewer late arrivals for every thousand flights.
Key figures
On time
82.0%
Arrivals under 15 minutes late, of 1,851 completed flights
Avg delay
83 min
Across delayed arrivals only, not all flights
Cancelled
4.28%
National rate is 1.89%
Best carrier
Envoy
83.4% on time across 1,341 flights
These figures cover 1,938 flights between September 2025 and August 2026. The median arrival is 8 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.
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Carrier by carrier
Which airline is most reliable on GRK to DFW
The two carriers here are closely matched: 5 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 | 1,341 | 83.4% | 79 min | 3.80% | B− |
| SkyWest Airlines | 597 | 78.9% | 89 min | 5.36% | 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.
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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 | Envoy Air | 83.4% | 85.9% | 2.93% | 5am–8am, Fri | — |
| 2. ACT → DFWWaco to Dallas-Fort Worth | SkyWest Airlines | 81.2% | 85.5% | 5.03% | 5am–8am, Tue | — |
| 3. GRK → DFWKilleen to Dallas-Fort Worth | Envoy Air | 80.2% | 83.4% | 3.80% | 8am–11am, Fri | MQ 3919 05:00 |
| 4. GRK → DFWKilleen to Dallas-Fort Worth | SkyWest Airlines | 74.7% | 78.9% | 5.36% | 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 27 points, against 5 points between the best and worst carrier.
- 5am–8am613 flights88.7%
- 8am–11am373 flights90.4%
- 11am–2pm353 flights77.9%
- 2pm–5pm284 flights72.8%
- 5pm–8pm285 flights72.5%
- 8pm–5am30 flights63.3%
Scale runs 55% to 95%.
The 8pm–5am window is where this operation falls apart: 63.3% on time, against 90.4% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5am–8am window is the busiest, with 613 flights scheduled in it.
Explore
Filter GRK to DFW by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On GRK to DFW, the best departure window is 8am–11am at 90.4% on time and the worst is 8pm–5am at 63.3%, a wide gap of 27.1 points. All US flights leaving 8am–11am ran 83.9%.
- 5–8am88.7%
- 8–11am90.4%
- 11am–2pm77.9%
- 2–5pm72.8%
- 5–8pm72.5%
- 8pm–5am63.3%
best all US flightsScale 55% to 95%.
Across the year
When delays peak on this route
This route's year swings by 12 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.
Delays peak in March, when the on-time rate falls to 74.1%. January is the strongest month at 86.4%. Moving a flexible trip across that boundary buys 12 points. July was the busiest month here, with 185 flights.
Across the week, Tuesday is the strongest day at 88.2% on time and Saturday the weakest at 78.8%, a spread of 9 points.
Delay causes
Why this route gets delayed
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 28,000 reported delay minutes.
- 38%Late-arriving aircraft
- 35%Carrier
- 16%Extreme weather
- 11%National Airspace System
Extreme weather accounts for 16% 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 2.7 times the usual weather exposure. The split is drawn from 27,550 reported delay minutes.
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 28,000 reported delay minutes here, that single category outweighs weather by 2 to one.
Cancellations run at 4.28%, against 1.89% nationally. That is about one flight in 25 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 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, 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 8am–11am window matters as much as it does.
The return leg runs 79.8% on time across 1,939 flights, within 2 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 1,938 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 4.28% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,851 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 six arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 18.0% of the 1,938 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
Which airline is most reliable on GRK to DFW?
Envoy Air leads at 83.4% on time across 1,341 flights. SkyWest Airlines is at the other end on 78.9%, a gap of 5 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 8am–11am departure window is the strongest at 90.4% on time. The 8pm–5am window is the weakest at 63.3%, 27 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 March delays on GRK to DFW?
March is the weakest month at 74.1% on time, compared with 86.4% in January. Across the year that is 12 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 DFW83.4%
- SkyWest Airlines on GRK to DFW78.9%
- ORD to DFW, a related route70.4%
- ATL to DFW, a related route73.9%
- LGA to DFW, a related route70.1%
- Envoy Air on-time record83.4%
- 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.
Embed GRK to DFW’s on-time badge on your site
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.