How far is Lockhart River from Mackay?

The distance between Mackay (Mackay Airport) and Lockhart River (Lockhart River Airport) is 695 miles / 1119 kilometers / 604 nautical miles.

The driving distance from Mackay (MKY) to Lockhart River (IRG) is 918 miles / 1478 kilometers, and travel time by car is about 22 hours 45 minutes.

Distance from Mackay to Lockhart River

There are several ways to calculate the distance from Mackay to Lockhart River. Here are two standard methods:

Vincenty's formula (applied above)

• 695.170 miles
• 1118.767 kilometers
• 604.086 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 697.133 miles
• 1121.927 kilometers
• 605.792 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Mackay to Lockhart River?

The estimated flight time from Mackay Airport to Lockhart River Airport is 1 hour and 48 minutes.

What is the time difference between Mackay and Lockhart River?

There is no time difference between Mackay and Lockhart River.

Flight carbon footprint between Mackay Airport (MKY) and Lockhart River Airport (IRG)

On average, flying from Mackay to Lockhart River generates about 124 kg of CO2 per passenger, and 124 kilograms equals 273 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Mackay to Lockhart River

See the map of the shortest flight path between Mackay Airport (MKY) and Lockhart River Airport (IRG).

Airport information

Origin	Mackay Airport
City:	Mackay
Country:	Australia
IATA Code:	MKY
ICAO Code:	YBMK
Coordinates:	21°10′18″S, 149°10′47″E

Destination	Lockhart River Airport
City:	Lockhart River
Country:	Australia
IATA Code:	IRG
ICAO Code:	YLHR
Coordinates:	12°47′12″S, 143°18′17″E