Nonstop flight route between New Orleans, Louisiana, United States and Helena, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from MSY to HLN:
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- About this route
- MSY Airport Information
- HLN Airport Information
- Facts about MSY
- Facts about HLN
- Map of Nearest Airports to MSY
- List of Nearest Airports to MSY
- Map of Furthest Airports from MSY
- List of Furthest Airports from MSY
- 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 Louis Armstrong New Orleans International Airport (MSY), New Orleans, Louisiana, United States and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 1,634 miles (or 2,630 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 relatively short distance between Louis Armstrong New Orleans International Airport and Helena Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | MSY / KMSY |
Airport Names: |
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Location: | New Orleans, Louisiana, United States |
GPS Coordinates: | 29°59'35"N by 90°15'29"W |
Area Served: | New Orleans, Louisiana |
Operator/Owner: | City of New Orleans |
Airport Type: | Public |
Elevation: | 4 feet (1 meters) |
# of Runways: | 2 |
View all routes: | Routes from MSY |
More Information: | MSY 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 Louis Armstrong New Orleans International Airport (MSY):
- Because of Louis Armstrong New Orleans International Airport's relatively low elevation of 4 feet, planes can take off or land at Louis Armstrong New Orleans 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.
- The furthest airport from Louis Armstrong New Orleans International Airport (MSY) is Cocos (Keeling) Island Airport (CCK), which is located 11,125 miles (17,905 kilometers) away in Cocos Islands, Australia.
- Eventually, all carriers announced their return to MSY, with the exception of America West Airlines and international carrier TACA.
- In addition to being known as "Louis Armstrong New Orleans International Airport", another name for MSY is "Moisant Field".
- Louis Armstrong New Orleans International Airport (MSY) has 2 runways.
- Southwest Airlines now carries the most passengers at New Orleans.
- Capital Airlines was one of the first airlines to operate jets into New Orleans with the Boeing 720.
- The closest airport to Louis Armstrong New Orleans International Airport (MSY) is Lakefront Airport (NEW), which is located only 14 miles (23 kilometers) ENE of MSY.
- On September 19, 1947 the airport was shut down as it was submerged under two feet of water in the wake of the 1947 Hurricane's impact.
Facts about Helena Regional Airport (HLN):
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of 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.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- Helena Regional Airport (HLN) has 3 runways.
- 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.