Nonstop flight route between Helena, Montana, United States and Carolina, Maranhão, Brazil:
Departure Airport:

Arrival Airport:

Distance from HLN to CLN:
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- About this route
- HLN Airport Information
- CLN Airport Information
- Facts about HLN
- Facts about CLN
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
- Map of Nearest Airports to CLN
- List of Nearest Airports to CLN
- Map of Furthest Airports from CLN
- List of Furthest Airports from CLN
About this route:
A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Carolina Airport (CLN), Carolina, Maranhão, Brazil would travel a Great Circle distance of 5,451 miles (or 8,772 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 Helena Regional Airport and Carolina 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 Helena Regional Airport and Carolina Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | HLN / KHLN |
Airport Names: |
|
Location: | Helena, Montana, United States |
GPS Coordinates: | 46°36'24"N by 111°58'58"W |
Area Served: | Helena, Montana |
Operator/Owner: | Helena Regional Airport Authority |
Airport Type: | Public |
Elevation: | 3877 feet (1,182 meters) |
# of Runways: | 3 |
View all routes: | Routes from HLN |
More Information: | HLN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CLN / SBCI |
Airport Names: |
|
Location: | Carolina, Maranhão, Brazil |
GPS Coordinates: | 22°42'13"S by 70°16'49"W |
Area Served: | Michilla |
Airport Type: | Public |
Elevation: | 128 feet (39 meters) |
# of Runways: | 1 |
View all routes: | Routes from CLN |
More Information: | CLN Maps & Info |
Facts about Helena Regional Airport (HLN):
- Helena Regional Airport (HLN) has 3 runways.
- 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.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
- 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.
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
Facts about Carolina Airport (CLN):
- The furthest airport from Carolina Airport (CLN) is Beihai Fucheng Airport (BHY), which is nearly antipodal to Carolina Airport (meaning Carolina Airport is almost on the exact opposite side of the Earth from Beihai Fucheng Airport), and is located 12,352 miles (19,878 kilometers) away in Beihai, Guangxi, China.
- Because of Carolina Airport's relatively low elevation of 128 feet, planes can take off or land at Carolina 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 addition to being known as "Carolina Airport", other names for CLN include "Carolina Airport (Michilla)", "Aeropuerto Carolina" and "SCMY".
- Carolina Airport (CLN) currently has only 1 runway.
- The closest airport to Carolina Airport (CLN) is Andrés Sabella Gálvez International Airport (former Cerro Moreno International Airport) (ANF), which is located 52 miles (84 kilometers) SSW of CLN.