Nonstop flight route between Greensboro, North Carolina, United States and Iliamna, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from GSO to ILI:
Share this route:
Jump to:
- About this route
- GSO Airport Information
- ILI Airport Information
- Facts about GSO
- Facts about ILI
- 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 ILI
- List of Nearest Airports to ILI
- Map of Furthest Airports from ILI
- List of Furthest Airports from ILI
About this route:
A direct, nonstop flight between Piedmont Triad International Airport (GSO), Greensboro, North Carolina, United States and Iliamna Airport (ILI), Iliamna, Alaska, United States would travel a Great Circle distance of 3,599 miles (or 5,792 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 Iliamna 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 Iliamna 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: | ILI / PAIL |
Airport Name: | Iliamna Airport |
Location: | Iliamna, Alaska, United States |
GPS Coordinates: | 59°45'14"N by 154°54'38"W |
Area Served: | Iliamna, Alaska |
Operator/Owner: | Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 192 feet (59 meters) |
# of Runways: | 4 |
View all routes: | Routes from ILI |
More Information: | ILI Maps & Info |
Facts about Piedmont Triad International Airport (GSO):
- 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.
- Delta Connection carrier Comair built a maintenance hangar at PTI to perform work on their CRJ's in 2005, bringing nearly 60 mechanics to Greensboro.
- An antecedent of PTI Airport, one of the first commercial airports in the South, Maynard Field was dedicated on December 6, 1919, just west of Greensboro near Oak Ridge.
- The new passenger terminal opened in 1958, replacing the temporary facility that had served since World War II.
- A third runway was built to accommodate the hub operation, parallel to one of the existing ones.
- 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.
- 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.
- 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.
- Independence Air began service into Greensboro when the airline started up with service to Washington Dulles International Airport.
- Skybus Airlines began service to Port Columbus International Airport as well in May 2007.
- Piedmont Triad International Airport (GSO) has 3 runways.
Facts about Iliamna Airport (ILI):
- Iliamna Airport (ILI) has 4 runways.
- Because of Iliamna Airport's relatively low elevation of 192 feet, planes can take off or land at Iliamna 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 Iliamna Airport (ILI) is Nondalton Airport (NNL), which is located only 16 miles (25 kilometers) N of ILI.
- The furthest airport from Iliamna Airport (ILI) is Port Elizabeth International Airport (PLZ), which is located 10,656 miles (17,149 kilometers) away in Port Elizabeth, South Africa.