Nonstop flight route between St. Mary's, Alaska, United States and New Orleans, Louisiana, United States:
Departure Airport:

Arrival Airport:

Distance from KSM to MSY:
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- About this route
- KSM Airport Information
- MSY Airport Information
- Facts about KSM
- Facts about MSY
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to MSY
- List of Nearest Airports to MSY
- Map of Furthest Airports from MSY
- List of Furthest Airports from MSY
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Louis Armstrong New Orleans International Airport (MSY), New Orleans, Louisiana, United States would travel a Great Circle distance of 3,865 miles (or 6,221 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 St. Mary's Airport and Louis Armstrong New Orleans International 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 St. Mary's Airport and Louis Armstrong New Orleans International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | KSM / PASM |
Airport Name: | St. Mary's Airport |
Location: | St. Mary's, Alaska, United States |
GPS Coordinates: | 62°3'38"N by 163°18'6"W |
Operator/Owner: | Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 312 feet (95 meters) |
# of Runways: | 2 |
View all routes: | Routes from KSM |
More Information: | KSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | MSY / KMSY |
Airport Names: |
|
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 |
Facts about St. Mary's Airport (KSM):
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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 St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- St. Mary's Airport (KSM) has 2 runways.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
Facts about Louis Armstrong New Orleans International Airport (MSY):
- National Airlines was flying into New Orleans by 1938.
- In February 2008 U.S.
- In May 2010, AirTran announced new daily nonstop service to its hub in Milwaukee utilizing Boeing 717 twin jet aircraft which then commenced on October 7, 2010.
- Louis Armstrong New Orleans International Airport (MSY) has 2 runways.
- 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.
- 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.
- 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.
- MSY was the hub for short-lived Pride Air, a start-up domestic airline which flew Boeing 727-100s and 727-200s for three months in 1985.
- In addition to being known as "Louis Armstrong New Orleans International Airport", another name for MSY is "Moisant Field".