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ICAO KGRK

Fort Cavazos Killeen Regional Airport / Robert Gray Army (GRK)

Killeen Regional Airport / Robert Gray Army Airfield handled 16,447 passengers in July 2026, down 1.0% on a year earlier, according to the US BTS.

Official · July 2026 according to the US BTS Full count · domestic + international

Flights (arrivals + departures) over time

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January297282▼ 5.1%
February274277▲ 1.1%
March301350▲ 16.3%
April303437▲ 44.2%
May313469▲ 49.8%
June285478▲ 67.7%
July279479▲ 71.7%
August285––
September269––
October372–in progress
November348––
December393––
Year to date (Jan–Jul)2,0522,772▲ 35.1%

Passengers over time

Full count · domestic + international
The most recent periods19 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January14,28111,268▼ 21.1%
February13,34711,653▼ 12.7%
March15,85414,031▼ 11.5%
April14,17614,028▼ 1.0%
May17,66416,226▼ 8.1%
June17,10316,964▼ 0.8%
July16,60816,447▼ 1.0%
August16,150––
September14,206––
October15,906–in progress
November13,215––
December14,709––
Year to date (Jan–Jul)109,033100,617▼ 7.7%

Tonnes of cargo over time

Full count · domestic + international
The most recent periods19 periods
PeriodTonnes of cargo 2025Tonnes of cargo 2026Change vs last year
January02▲ 22,270.0%
February00▲ 1,780.0%
March00▼ 42.2%
April00▲ 158.3%
May00▲ 3.3%
June02▲ 500.3%
July01▲ 3.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)15▲ 340.3%

Seats offered over time

Full count · domestic + international
The most recent periods19 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January21,25822,257▲ 4.7%
February19,67820,270▲ 3.0%
March22,68324,926▲ 9.9%
April21,85931,062▲ 42.1%
May22,78431,373▲ 37.7%
June22,53233,080▲ 46.8%
July21,86233,178▲ 51.8%
August23,006––
September21,604––
October29,247–in progress
November27,273––
December29,480––
Year to date (Jan–Jul)152,656196,146▲ 28.5%

Load factor (computed)

Full count · domestic + international

Passengers ÷ seats offered, both as reported by the US BTS for the same months. Computed by us; the two source series are shown on this page.

The most recent periods19 periods
PeriodLoad factor 2025Load factor 2026Change vs last year
January67.2%50.6%▼ 24.6%
February67.8%57.5%▼ 15.2%
March69.9%56.3%▼ 19.5%
April64.9%45.2%▼ 30.4%
May77.5%51.7%▼ 33.3%
June75.9%51.3%▼ 32.4%
July76.0%49.6%▼ 34.7%
August70.2%––
September65.8%––
October54.4%–in progress
November48.5%––
December49.9%––
Year-to-date average (Jan–Jul)71.3%51.7%▼ 27.4%

Seasonality · flights (arrivals + departures) by month

Year JanFebMarAprMayJunJulAugSepOctNovDec
2024 247 232 249 290 319 304 358 308 313 359 345 319
2025 297 274 301 303 313 285 279 285 269 372 348 393
2026 282 277 350 437 469 478 479
Series depth 35 years from 1991

Busiest destinations

Flights recorded between Oct 12, 2024 and Jul 31, 2026, counted from flight records published by the US BTS. Not a current timetable.

Busiest destinations FlightsDistance (km)
Dallas Fort Worth International Airport GRK–DFW → 6,752 217

On-time departures by month

US domestic sectors recorded by BTS

83.6% of 183 timed departures from Killeen Regional Airport / Robert Gray Army Airfield left within 15 minutes of schedule in July 2026, according to the US BTS. Cancelled flights are excluded.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January82.9%87.3%▲ 5.3%
February85.0%84.4%▼ 0.6%
March82.3%77.8%▼ 5.5%
April78.7%84.3%▲ 7.1%
May82.3%83.6%▲ 1.6%
June69.2%76.3%▲ 10.4%
July77.0%83.6%▲ 8.5%
August79.0%––
September83.3%––
October82.1%–in progress
November86.0%––
December86.7%––
Year-to-date average (Jan–Jul)79.6%82.5%▲ 3.6%

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay05:00–06:00-0.3min · 514 recorded · 505 measured
Gap to highest-delay hour19.4min05:00 ↔ 16:00
Recorded flights3,376Killeen Regional Airport / Robert Gray Army Airfield

Departure hour

On-time departures Partial coverage: domestic flights only
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 93.7% · 514 recorded · 505 measured · Source: the US BTS 06:00 · 90.1% · 352 recorded · 344 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 199 recorded · 190 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 38 recorded · 38 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 18 recorded · 14 measured · Source: the US BTS 10:00 · 85.0% · 642 recorded · 619 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 197 recorded · 188 measured · Source: the US BTS 12:00 · 72.2% · 404 recorded · 388 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 13 recorded · 13 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 13 recorded · 12 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 155 recorded · 151 measured · Source: the US BTS 16:00 · 68.4% · 226 recorded · 218 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 218 recorded · 199 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 167 recorded · 159 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 209 recorded · 191 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · -0.3 min · 514 recorded · 505 measured · Source: the US BTS 06:00 · 3.8 min · 352 recorded · 344 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 199 recorded · 190 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 38 recorded · 38 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 18 recorded · 14 measured · Source: the US BTS 10:00 · 5.4 min · 642 recorded · 619 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 197 recorded · 188 measured · Source: the US BTS 12:00 · 17.1 min · 404 recorded · 388 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 13 recorded · 13 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 13 recorded · 12 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 155 recorded · 151 measured · Source: the US BTS 16:00 · 19.1 min · 226 recorded · 218 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 218 recorded · 199 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 167 recorded · 159 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 209 recorded · 191 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 514 · 514 recorded · 505 measured · Source: the US BTS 06:00 · 352 · 352 recorded · 344 measured · Source: the US BTS 07:00 · 199 · 199 recorded · 190 measured · Source: the US BTS 08:00 · 38 · 38 recorded · 38 measured · Source: the US BTS 09:00 · 18 · 18 recorded · 14 measured · Source: the US BTS 10:00 · 642 · 642 recorded · 619 measured · Source: the US BTS 11:00 · 197 · 197 recorded · 188 measured · Source: the US BTS 12:00 · 404 · 404 recorded · 388 measured · Source: the US BTS 13:00 · 13 · 13 recorded · 13 measured · Source: the US BTS 14:00 · 13 · 13 recorded · 12 measured · Source: the US BTS 15:00 · 155 · 155 recorded · 151 measured · Source: the US BTS 16:00 · 226 · 226 recorded · 218 measured · Source: the US BTS 17:00 · 218 · 218 recorded · 199 measured · Source: the US BTS 18:00 · 167 · 167 recorded · 159 measured · Source: the US BTS 19:00 · 209 · 209 recorded · 191 measured · Source: the US BTS 20:00 · 11 · 11 recorded · 11 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0093.7%-0.3 min505514
06:0090.1%3.8 min344352
07:00Fewer than 200 measured departures—190199
08:00Fewer than 200 measured departures—3838
09:00Fewer than 200 measured departures—1418
10:0085.0%5.4 min619642
11:00Fewer than 200 measured departures—188197
12:0072.2%17.1 min388404
13:00Fewer than 200 measured departures—1313
14:00Fewer than 200 measured departures—1213
15:00Fewer than 200 measured departures—151155
16:0068.4%19.1 min218226
17:00Fewer than 200 measured departures—199218
18:00Fewer than 200 measured departures—159167
19:00Fewer than 200 measured departures—191209
20:00Fewer than 200 measured departures—1111
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: domestic flights only
Monday · 78.5% · 496 recorded · 478 measured · Source: the US BTS Tuesday · 88.2% · 478 recorded · 456 measured · Source: the US BTS Wednesday · 81.6% · 462 recorded · 446 measured · Source: the US BTS Thursday · 84.4% · 494 recorded · 475 measured · Source: the US BTS Friday · 82.4% · 494 recorded · 484 measured · Source: the US BTS Saturday · 82.1% · 462 recorded · 440 measured · Source: the US BTS Sunday · 79.0% · 490 recorded · 461 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only
Monday · 13.3 min · 496 recorded · 478 measured · Source: the US BTS Tuesday · 2.6 min · 478 recorded · 456 measured · Source: the US BTS Wednesday · 8.6 min · 462 recorded · 446 measured · Source: the US BTS Thursday · 6.3 min · 494 recorded · 475 measured · Source: the US BTS Friday · 9.1 min · 494 recorded · 484 measured · Source: the US BTS Saturday · 9.4 min · 462 recorded · 440 measured · Source: the US BTS Sunday · 9.2 min · 490 recorded · 461 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only
Monday · 496 · 496 recorded · 478 measured · Source: the US BTS Tuesday · 478 · 478 recorded · 456 measured · Source: the US BTS Wednesday · 462 · 462 recorded · 446 measured · Source: the US BTS Thursday · 494 · 494 recorded · 475 measured · Source: the US BTS Friday · 494 · 494 recorded · 484 measured · Source: the US BTS Saturday · 462 · 462 recorded · 440 measured · Source: the US BTS Sunday · 490 · 490 recorded · 461 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday78.5%13.3 min478496
Tuesday88.2%2.6 min456478
Wednesday81.6%8.6 min446462
Thursday84.4%6.3 min475494
Friday82.4%9.1 min484494
Saturday82.1%9.4 min440462
Sunday79.0%9.2 min461490

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: domestic flights only
Jan · 84.9% · 297 recorded · 264 measured · Source: the US BTS Feb · 84.7% · 257 recorded · 255 measured · Source: the US BTS Mar · 80.1% · 294 recorded · 282 measured · Source: the US BTS Apr · 81.7% · 314 recorded · 300 measured · Source: the US BTS May · 83.0% · 334 recorded · 318 measured · Source: the US BTS Jun · 73.2% · 320 recorded · 302 measured · Source: the US BTS Jul · 80.8% · 324 recorded · 318 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 136 recorded · 133 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 128 recorded · 126 measured · Source: the US BTS Oct · 85.9% · 288 recorded · 284 measured · Source: the US BTS Nov · 83.7% · 348 recorded · 326 measured · Source: the US BTS Dec · 86.1% · 336 recorded · 332 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only
Jan · 4.1 min · 297 recorded · 264 measured · Source: the US BTS Feb · 3.8 min · 257 recorded · 255 measured · Source: the US BTS Mar · 11.3 min · 294 recorded · 282 measured · Source: the US BTS Apr · 7.8 min · 314 recorded · 300 measured · Source: the US BTS May · 9.7 min · 334 recorded · 318 measured · Source: the US BTS Jun · 20.1 min · 320 recorded · 302 measured · Source: the US BTS Jul · 7.1 min · 324 recorded · 318 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 136 recorded · 133 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 128 recorded · 126 measured · Source: the US BTS Oct · 4.4 min · 288 recorded · 284 measured · Source: the US BTS Nov · 6.9 min · 348 recorded · 326 measured · Source: the US BTS Dec · 5.0 min · 336 recorded · 332 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only
Jan · 297 · 297 recorded · 264 measured · Source: the US BTS Feb · 257 · 257 recorded · 255 measured · Source: the US BTS Mar · 294 · 294 recorded · 282 measured · Source: the US BTS Apr · 314 · 314 recorded · 300 measured · Source: the US BTS May · 334 · 334 recorded · 318 measured · Source: the US BTS Jun · 320 · 320 recorded · 302 measured · Source: the US BTS Jul · 324 · 324 recorded · 318 measured · Source: the US BTS Aug · 136 · 136 recorded · 133 measured · Source: the US BTS Sep · 128 · 128 recorded · 126 measured · Source: the US BTS Oct · 288 · 288 recorded · 284 measured · Source: the US BTS Nov · 348 · 348 recorded · 326 measured · Source: the US BTS Dec · 336 · 336 recorded · 332 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.9%4.1 min264297
Feb84.7%3.8 min255257
Mar80.1%11.3 min282294
Apr81.7%7.8 min300314
May83.0%9.7 min318334
Jun73.2%20.1 min302320
Jul80.8%7.1 min318324
AugFewer than 200 measured departures—133136
SepFewer than 200 measured departures—126128
Oct85.9%4.4 min284288
Nov83.7%6.9 min326348
Dec86.1%5.0 min332336

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 79.0% 2,666
  • Delayed >15 min 17.0% 574
  • Cancelled 4.0% 136
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Environment

Air pollutants at the airport (EPA estimate)

Modelled estimate, not a measurement: aircraft below 3,000 ft (landing and take-off), ground support equipment and auxiliary power units, plus any stationary sources the state reported at the airport site. Cruise emissions are not included.

In 2023, the US EPA estimated 75.2 tonnes of nitrogen oxides (NOₓ) and 1.8 tonnes of fine particles (PM2.5) from activity at Killeen Regional Airport / Robert Gray Army Airfield, according to the EPA National Emissions Inventory.

PollutantUnit201720202023
NOₓ (Nitrogen oxides)tonnes61.737975.2
CO (Carbon monoxide)tonnes95.8457300
SO₂ (Sulphur dioxide)tonnes6.736.110.3
VOC (Volatile organic compounds)tonnes24.5187150
PM2.5 (Fine particles)tonnes3.423.01.8
PM10 (Particulate matter)tonnes3.523.61.8
Leadkg2.46.60.94
CO₂ (Carbon dioxide)tonnes5,75846,770—

The inventory is published every three years. Coverage changes between editions (about 19,300 airport sites in 2017, 6,000 in 2020, 12,700 in 2023), 2020 reflects the pandemic drop in traffic, and EPA updates its aircraft model between editions — so the columns are not a trend (Los Angeles: 3,562 tonnes of NOₓ in 2017, 8,810 in 2023). CO₂ is only reported for some sites in 2017, for all sites in 2020, and not at all in 2023. EPA publishes US customary units; converted here to metric tonnes (× 0.907) and, for lead, kilograms.

US EPA — National Emissions Inventory

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