Nonstop flight route between Greensboro, North Carolina, United States and St. Michael, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from GSO to SMK:
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- About this route
- GSO Airport Information
- SMK Airport Information
- Facts about GSO
- Facts about SMK
- Map of Nearest Airports to GSO
- List of Nearest Airports to GSO
- Map of Furthest Airports from GSO
- List of Furthest Airports from GSO
- Map of Nearest Airports to SMK
- List of Nearest Airports to SMK
- Map of Furthest Airports from SMK
- List of Furthest Airports from SMK
About this route:
A direct, nonstop flight between Piedmont Triad International Airport (GSO), Greensboro, North Carolina, United States and St. Michael Airport (SMK), St. Michael, Alaska, United States would travel a Great Circle distance of 3,787 miles (or 6,094 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 Piedmont Triad International Airport and St. Michael 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 Piedmont Triad International Airport and St. Michael Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | GSO / KGSO |
Airport Name: | Piedmont Triad International Airport |
Location: | Greensboro, North Carolina, United States |
GPS Coordinates: | 36°5'52"N by 79°56'13"W |
Area Served: | Greensboro, High Point, and Winston-Salem, North Carolina |
Operator/Owner: | Piedmont Triad Airport Authority |
Airport Type: | Public |
Elevation: | 926 feet (282 meters) |
# of Runways: | 3 |
View all routes: | Routes from GSO |
More Information: | GSO Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SMK / PAMK |
Airport Name: | St. Michael Airport |
Location: | St. Michael, Alaska, United States |
GPS Coordinates: | 63°29'24"N by 162°6'37"W |
Area Served: | St. Michael, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Northern Region |
Airport Type: | Public |
Elevation: | 98 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from SMK |
More Information: | SMK Maps & Info |
Facts about Piedmont Triad International Airport (GSO):
- In July 1942 responsibility for the airport was given to the Greensboro-High Point Airport Authority, with representatives from Greensboro, High Point, and the Sedgefield community.
- Piedmont Triad International Airport (GSO) has 3 runways.
- Skybus Airlines began service to Port Columbus International Airport as well in May 2007.
- A third runway was built to accommodate the hub operation, parallel to one of the existing ones.
- Also in the mid-1990s, start-up carrier Eastwind Airlines began serving PTI.
- Because of Piedmont Triad International Airport's relatively low elevation of 926 feet, planes can take off or land at Piedmont Triad 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 Piedmont Triad International Airport (GSO) is Margaret River Airport (MGV), which is located 11,574 miles (18,626 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Piedmont Triad International Airport (GSO) is Smith Reynolds Airport (INT), which is located only 16 miles (26 kilometers) W of GSO.
Facts about St. Michael Airport (SMK):
- St. Michael Airport (SMK) currently has only 1 runway.
- The closest airport to St. Michael Airport (SMK) is Stebbins Airport (WBB), which is located only 5 miles (9 kilometers) WNW of SMK.
- Because of St. Michael Airport's relatively low elevation of 98 feet, planes can take off or land at St. Michael 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. Michael Airport (SMK) is Cape Town International Airport (CPT), which is located 10,397 miles (16,732 kilometers) away in Cape Town, South Africa.