Nonstop flight route between Luanda, Angola and Helena, Montana, United States:

About this route:

A direct, nonstop flight between Quatro de Fevereiro International Airport (LAD), Luanda, Angola and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 8,306 miles (or 13,368 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Quatro de Fevereiro International Airport and Helena Regional Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Quatro de Fevereiro International Airport and Helena Regional Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Quatro de Fevereiro International Airport (LAD):

• Quatro de Fevereiro International Airport handled 2,430,794 passengers last year.
• The furthest airport from Quatro de Fevereiro International Airport (LAD) is Johnston Atoll Airport (JON), which is located 11,862 miles (19,090 kilometers) away in Johnston Atoll, U.S. Minor Outlying Islands.
• Quatro de Fevereiro International Airport (LAD) has 2 runways.
• The airport resides at an elevation of 243 feet above mean sea level.
• On 31 January 2010, Guicango Yakovlev Yak-40 D2-FES suffered the collapse of all landing gears on landing after a flight from Cabinda.
• In addition to being known as "Quatro de Fevereiro International Airport", other names for LAD include "Aeroporto 4 de Fevereiro (Belas) (Luanda)" and "Aeroporto Internacional 4 de Fevereiro".
• Because of Quatro de Fevereiro International Airport's relatively low elevation of 243 feet, planes can take off or land at Quatro de Fevereiro International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• In 2009, about 1.8 million passengers were counted.
• The closest airport to Quatro de Fevereiro International Airport (LAD) is Ambriz Airport (AZZ), which is located 69 miles (111 kilometers) N of LAD.

Facts about Helena Regional Airport (HLN):

• The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
• The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
• Helena Regional Airport (HLN) has 3 runways.
• Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.