Nonstop flight route between Los Negros Island, Admiralty Islands, Papua New Guinea and Helena, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from MAS to HLN:
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- About this route
- MAS Airport Information
- HLN Airport Information
- Facts about MAS
- Facts about HLN
- Map of Nearest Airports to MAS
- List of Nearest Airports to MAS
- Map of Furthest Airports from MAS
- List of Furthest Airports from MAS
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
About this route:
A direct, nonstop flight between Momote Airport (MAS), Los Negros Island, Admiralty Islands, Papua New Guinea and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 6,824 miles (or 10,982 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 Momote 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 Momote 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:
IATA / ICAO Codes: | MAS / AYMO |
Airport Name: | Momote Airport |
Location: | Los Negros Island, Admiralty Islands, Papua New Guinea |
GPS Coordinates: | 2°3'42"S by 147°25'27"E |
Area Served: | Lorengau, Manus Province |
Operator/Owner: | PNG National Airports Corporation Limited |
Airport Type: | Public |
Elevation: | 12 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from MAS |
More Information: | MAS Maps & Info |
Arrival 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 |
Facts about Momote Airport (MAS):
- Because of Momote Airport's relatively low elevation of 12 feet, planes can take off or land at Momote 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.
- The airport resides at an elevation of 12 feet above mean sea level.
- Occupied on 2 March 1944 by the US Army's 1st Cavalry Division as part of the Battle of Los Negros, which was part of the Admiralty Islands campaign.
- Built by the Imperial Japanese at Momote during World War II.
- The closest airport to Momote Airport (MAS) is Emirau Airport (EMI), which is located 179 miles (287 kilometers) E of MAS.
- Momote Airport (MAS) currently has only 1 runway.
- The furthest airport from Momote Airport (MAS) is Governador Carlos Wilson Airport (FEN), which is nearly antipodal to Momote Airport (meaning Momote Airport is almost on the exact opposite side of the Earth from Governador Carlos Wilson Airport), and is located 12,028 miles (19,357 kilometers) away in Fernando de Noronha, Pernambuco, Brazil.
Facts about Helena Regional Airport (HLN):
- 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.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".