Route Reliability

Airport reliability

Killeen (GRK) on-time performance

How reliably flights leave Killeen, TX (GRK) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Killeen, TX1,938 departures in 12 months

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Departures on time
78.3%
U.S. average 75.6%
Cancelled
4.3%
U.S. average 1.9%
60+ minutes late
7.2%
U.S. average 8.1%
Scheduled departures
1,938
12 months

What this means

GRK departures beat the U.S. average.

  • 78.3% of the 1,938 scheduled departures from Killeen (GRK) arrived at their destination on time, 2.7 points higher than the U.S. average of 75.6%.
  • 4.3% of departures were cancelled (U.S. average 1.9%), and 7.2% arrived an hour or more late.
  • Flights arriving at GRK were on time 76.4% of the time.
  • Among airlines with at least 300 departures, Envoy Air was the most punctual from GRK (80.0%) and SkyWest Airlines the least (74.5%).
  • Over the last 3 years, February was the most reliable month for departures from GRK (87.1% on time) and June the least reliable (67.9%).
  • Cancellations peaked in January, when 9.9% of flights were cancelled.
  • Flights scheduled to depart before 6 am were the most punctual (87.1% on time); flights scheduled to depart 6 pm to 7 pm were the least (62.1%).

Airlines at GRK

Ranked by on-time arrival

Departures from GRK, September 2025 to August 2026. On time means arrived at the destination within 15 minutes of schedule.
AirlineOn timeCancelled 60+ min lateAvg delay when lateDepartures
Envoy AirSold as American Eagle 80.0%3.8% 6.3%79 min 1,341
SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska 74.5%5.4% 9.2%89 min 597

Tap a heading to sort.

On-time rate by departure hour

<6a 87.1%
6a 83.9%
7a 85.0%
8a Insufficient sample
9a Insufficient sample
10a 86.7%
11a 76.2%
12p 72.7%
1p Insufficient sample
2p Insufficient sample
3p 75.3%
4p 61.2%
5p Insufficient sample
6p 62.1%
7p 70.6%
8p Insufficient sample
Share of scheduled flights on time GRK average 78.3%
Departures from GRK by scheduled local departure hour, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing before 6 am 87.1% 264
Departing 6 am to 7 am 83.9% 143
Departing 7 am to 8 am 85.0% 206
Departing 8 am to 9 am Insufficient sample 5
Departing 9 am to 10 am Insufficient sample 45
Departing 10 am to 11 am 86.7% 323
Departing 11 am to noon 76.2% 168
Departing noon to 1 pm 72.7% 172
Departing 1 pm to 2 pm Insufficient sample 13
Departing 2 pm to 3 pm Insufficient sample 13
Departing 3 pm to 4 pm 75.3% 186
Departing 4 pm to 5 pm 61.2% 85
Departing 5 pm to 6 pm Insufficient sample 37
Departing 6 pm to 7 pm 62.1% 116
Departing 7 pm to 8 pm 70.6% 153
Departing 8 pm to 9 pm Insufficient sample 9

Best and worst months at GRK

Jan 73.0%
Feb 87.1%
Mar 74.9%
Apr 76.1%
May 74.9%
Jun 67.9%
Jul 74.7%
Aug 80.8%
Sep 76.7%
Oct 83.1%
Nov 77.5%
Dec 83.2%
Share of scheduled flights on time 12-month average 78.3%
Departures from GRK by calendar month, September 2023 to August 2026 pooled. Scale starts at zero.
Show as table
PeriodOn timeFlights
January 73.0% 426
February 87.1% 373
March 74.9% 418
April 76.1% 461
May 74.9% 487
June 67.9% 467
July 74.7% 499
August 80.8% 453
September 76.7% 417
October 83.1% 497
November 77.5% 481
December 83.2% 470

Month by month, last 12 months

Sep 76.6%
Oct 77.9%
Nov 75.1%
Dec 82.2%
Jan 70.3%
Feb 82.9%
Mar 70.4%
Apr 79.9%
May 81.6%
Jun 74.4%
Jul 81.6%
Aug 85.0%
Share of scheduled flights on time U.S. average 75.6%
Departures from GRK, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 76.6% 128
Oct 2025 77.9% 172
Nov 2025 75.1% 173
Dec 2025 82.2% 180
Jan 2026 70.3% 145
Feb 2026 82.9% 123
Mar 2026 70.4% 142
Apr 2026 79.9% 164
May 2026 81.6% 179
Jun 2026 74.4% 180
Jul 2026 81.6% 185
Aug 2026 85.0% 167

Busiest routes from GRK

Nonstop routes from GRK by scheduled flights, September 2025 to August 2026.
ToOn timeCancelledAirlinesFlights
Dallas/Fort Worth (DFW) 78.3%4.3%21,938
Airliner parked at a terminal gate
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Scheduled nonstop domestic departures from Killeen, TX (GRK) by airlines that report to the DOT.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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