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

Arrival Airport:

Distance from LGA to KSM:
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- About this route
- LGA Airport Information
- KSM Airport Information
- Facts about LGA
- Facts about KSM
- Map of Nearest Airports to LGA
- List of Nearest Airports to LGA
- Map of Furthest Airports from LGA
- List of Furthest Airports from LGA
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between LaGuardia Airport (LGA), New York City, New York, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,766 miles (or 6,061 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 LaGuardia Airport and St. Mary's 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 LaGuardia Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | LGA / KLGA |
Airport Name: | LaGuardia Airport |
Location: | New York City, New York, United States |
GPS Coordinates: | 40°46'38"N by 73°52'21"W |
Area Served: | New York City |
Operator/Owner: | City of New York |
Airport Type: | Public |
Elevation: | 21 feet (6 meters) |
# of Runways: | 2 |
View all routes: | Routes from LGA |
More Information: | LGA Maps & Info |
Arrival 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 |
Facts about LaGuardia Airport (LGA):
- On December 16, 2011, Delta Air Lines announced plans to open a new domestic hub at LaGuardia Airport.
- Because of LaGuardia Airport's relatively low elevation of 21 feet, planes can take off or land at LaGuardia 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 closest airport to LaGuardia Airport (LGA) is Flushing Airport (closed 1984) (FLU), which is located only 2 miles (3 kilometers) E of LGA.
- LaGuardia Airport (LGA) has 2 runways.
- The current site of the airport was originally used by the Gala Amusement Park, owned by the Steinway family.
- The airport was dedicated on October 15, 1939, as the New York Municipal Airport and opened for business on December 2 of that year.
- The furthest airport from LaGuardia Airport (LGA) is Margaret River Airport (MGV), which is located 11,754 miles (18,917 kilometers) away in Margaret River, Western Australia, Australia.
- The initiative to develop the airport for commercial flights began with an outburst by New York mayor Fiorello La Guardia upon the arrival of his TWA flight at Newark Airport – the only commercial airport serving the New York City region at the time – as his ticket said "New York".
- In 1986, Pan Am restarted flights at the MAT with the purchase of New York Air's shuttle service between Boston, New York City, and Washington, D.C.
- LaGuardia has also been criticized for some of its outdated facilities.
- On August 12, 2009, Delta Air Lines and US Airways announced a landing slot and terminal swap in separate press releases.
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 closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- 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.