Fort Cavazos (GRK) to Harlingen (HRL)

334mi
538 km291 nm

Flight time

≈ 1h 28m

Bearing

178° S

Fort Cavazos (GRK) to Harlingen (HRL) is 334 miles (538 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.

Route map: GRK → HRLGRKHRL

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What actually flies GRK–HRL

Filed traffic data

In May 2026, Air Wisconsin Airlines operated the most departures, one of 2 carriers flying nonstop GRK–HRL; the Bombardier CRJ-200 was the most common aircraft at 92% of departures; flights ran 1% full.

Departures

26

May 2026

Seats

1,556

both directions

Passengers

13

both directions

Load factor

0.8%

RPM ÷ ASM

Who flies GRK–HRL?

Air Wisconsin Airlines operated the most nonstop GRK–HRL departures in May 2026 (24), one of 2 carriers on the route.

What plane flies GRK–HRL?

In May 2026, the Bombardier CRJ-200 flew 92% of GRK–HRL departures — more than any other aircraft type.

How has GRK–HRL traffic changed?

Nonstop GRK–HRL departures rose from 1 in November 2025 to 26 in May 2026.

Monthly nonstop GRK–HRL traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.

  • November 2025

    1 departures · 10 passengers

    6.9%

    Load

  • December 2025

    5 departures · 21 passengers

    3.0%

    Load

  • January 2026

    3 departures · 37 passengers

    8.6%

    Load

  • February 2026

    5 departures · 34 passengers

    6.2%

    Load

  • March 2026

    13 departures · 31 passengers

    2.7%

    Load

  • April 2026

    24 departures · 11 passengers

    0.8%

    Load

  • May 2026

    26 departures · 13 passengers

    0.8%

    Load

Nonstop GRK–HRL traffic has been filed since 2025.

Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).

The airports

GRK

Fort Cavazos

US

Killeen Regional Airport / Robert Gray Army Airfield

Coordinates

31.07°N, 97.83°W

Hemisphere

N · W

HRL

Harlingen

US

Valley International Airport

Coordinates

26.23°N, 97.65°W

Hemisphere

N · W

Frequently asked

How far is Fort Cavazos (GRK) from Harlingen (HRL)?

GRK to HRL is 334 miles (538 km / 291 nautical miles) measured great-circle — the shortest path over the surface of the Earth.

How long is the flight from GRK to HRL?

A nonstop covers the 334-mile great-circle distance in roughly 1h 28m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.

What plane flies GRK–HRL?

In May 2026, the Bombardier CRJ-200 flew the largest share of departures (92.3%), followed by the Boeing 737-400 (7.7%).

What mileage do I earn flying GRK–HRL?

Distance-based programs credit off the 334-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.

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