Skip to main content

Route

Harlingen → Fort Cavazos

HRLHarlingenValley International Airport
GRKFort CavazosKilleen Regional Airport / Robert Gray Army Airfield
Distance
334 mi
Estimated flight time
~1h 10m

Same local time in Harlingen and Fort Cavazos.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

Daily at most

On average around 1 flights a day, observed from October 2025 to September 2026.

1
flights per day
1
busiest month · Oct
53 min
measured flight time
9 / 12
months seen

Through the year

Per day, month by month

  1. 1Jan2026
  2. 1Feb
  3. 1Mar
  4. 1Apr
  5. –May
  6. –Jun
  7. 1Jul
  8. 1Aug
  9. –Sep
  10. 1Oct2025
  11. 1Nov
  12. 1Dec

In May 2026, June 2026, July 2026, September 2026 we saw less traffic at Harlingen in general than usual; compare that month with care.

Airlines

Who flies it

Air Wisconsinspring
Key Lime Airwinter
CSI Aviationwinter
Eastern Air Expressnow and then

Through the day

Departure times

Local time in Harlingen. Most departures between 09:00 and 12:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 0.3Mon
  2. 0.2Tue
  3. 0.3Wed
  4. 0.6Thu
  5. 0.1Fri
  6. 0.1Sat
  7. 0.6Sun

Fleet

Aircraft observed

  1. Bombardier CRJ200CRJ231%
  2. E45X23%
  3. B19022%
  4. Boeing 737-300B73311%
  5. Embraer ERJ 145E1457%
All the numbers in a table
MonthPer daySeenAirlines
January 2026117
  • Key Lime Air11×
  • CSI Aviation3×
  • Eastern Air Express2×
February 2026122
  • Key Lime Air12×
  • CSI Aviation6×
  • Air Wisconsin2×
  • Eastern Air Express2×
March 2026130
  • CSI Aviation11×
  • Air Wisconsin7×
  • Key Lime Air7×
  • Eastern Air Express4×
April 2026110
  • Air Wisconsin8×
  • Key Lime Air2×
May 2026Not seen in this month.
June 2026Not seen in this month.
July 202614
  • Air Wisconsin4×
August 2026114
  • Air Wisconsin14×
September 2026Not seen in this month.
October 202512–
    November 202515
    • CSI Aviation2×
    December 202519
    • CSI Aviation3×
    • Key Lime Air2×

    Airlines observed on this route

    From observed callsign routes on HRL-GRK - not a booking guarantee.

    Air Wisconsin

    ZW · AWI

    Hub: MKE Milwaukee

    32 departure airportsView airline →

    CSI Aviation

    CSI

    Hub: ABQ Albuquerque

    22 departure airportsView airline →

    Eastern Air Express

    BBQ

    Hub: CAK Akron

    14 departure airportsView airline →

    Key Lime Air

    KG · LYM

    Hub: DEN Denver

    49 departure airportsView airline →

    About this route

    • Domestic route: both airports are in the same country.
    • The opposite direction has also been observed as a direct connection.
    • Direct destinations observed from Harlingen: 20.
    • Direct destinations observed from Fort Cavazos: 28.

    The airports on this route

    Valley International Airport

    Harlingen, United StatesHRL / KHRL

    Regional airport · 20 direct destinations · 3 runways · longest runway 9,400 ft

    73 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

    Airport pageAll direct destinations

    Killeen Regional Airport / Robert Gray Army Airfield

    Fort Cavazos, United StatesGRK / KGRK

    Regional airport · 28 direct destinations · 1 runway · longest runway 9,997 ft

    60 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center

    Airport pageAll direct destinations

    Alternative airports for this journey

    Same journey, a different airport nearby - with an observed direct connection.

    HRL AUSAustin Bergstrom International AirportAustin is about 61 mi from Fort Cavazos.View route →

    About the route from Harlingen to Fort Cavazos

    The observed direct connection between Valley International Airport (HRL) and Killeen Regional Airport / Robert Gray Army Airfield (GRK) covers approximately 334 mi. The estimated flight time is around 1h 10m. Air Wisconsin, CSI Aviation, Eastern Air Express and Key Lime Air have been observed on this connection in the available route data.

    Frequently asked questions about this route

    How far is Harlingen from Fort Cavazos by air?
    The great-circle distance between Valley International Airport and Killeen Regional Airport / Robert Gray Army Airfield is approximately 334 mi.
    How long is the flight from Harlingen to Fort Cavazos?
    Based on the distance, the estimated flight time is about 1h 10m. This is an estimate, not a schedule.
    Is there a direct connection from Harlingen to Fort Cavazos?
    Yes, a direct connection between HRL and GRK has been observed in our route data.
    Which airlines have been observed on this route?
    In the available route data: Air Wisconsin, CSI Aviation, Eastern Air Express and Key Lime Air.
    How often is there a flight from Harlingen to Fort Cavazos?
    On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 113 observed flights. Mainly Air Wisconsin, Key Lime Air, CSI Aviation. That is an observation, not a timetable.
    What is the current time difference between Harlingen and Fort Cavazos?
    Same local time in Harlingen and Fort Cavazos.

    Where this data comes from

    The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

    The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

    Route data updated on October 11, 2026.