Nonstop flight route between Greensboro, North Carolina, United States and Port Huron, Michigan, United States:

About this route:

A direct, nonstop flight between Piedmont Triad International Airport (GSO), Greensboro, North Carolina, United States and St. Clair County International Airport (PHN), Port Huron, Michigan, United States would travel a Great Circle distance of 491 miles (or 789 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 Piedmont Triad International Airport and St. Clair County International Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Piedmont Triad International Airport (GSO):

• The new passenger terminal opened in 1958, replacing the temporary facility that had served since World War II.
• US Airways operates a US Airways Club across from Gate 45.
• The hub building opened on June 2, 2009, but only opened with the same amount of employees and flights as the old sorting facility.
• Work on the new facility began in 1978.
• 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.
• 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.
• In the mid-1990s Continental Airlines developed a hub at the airport, largely to support its new Continental Lite low-fare product.
• Piedmont Triad International Airport (GSO) has 3 runways.
• 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.
• Allegiant Air began service to Orlando Sanford International Airport and St.
• By 1975 airport officials began to plan for a new terminal.

Facts about St. Clair County International Airport (PHN):

• St. Clair County International Airport (PHN) has 2 runways.
• The closest airport to St. Clair County International Airport (PHN) is Sarnia (Chris Hadfield) Airport (YZR), which is located only 13 miles (20 kilometers) ENE of PHN.
• The furthest airport from St. Clair County International Airport (PHN) is Margaret River Airport (MGV), which is located 11,302 miles (18,189 kilometers) away in Margaret River, Western Australia, Australia.
• Because of St. Clair County International Airport's relatively low elevation of 650 feet, planes can take off or land at St. Clair County 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.