Nonstop flight route between Roanoke, Virginia, United States and Port Huron, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from ROA to PHN:
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- About this route
- ROA Airport Information
- PHN Airport Information
- Facts about ROA
- Facts about PHN
- Map of Nearest Airports to ROA
- List of Nearest Airports to ROA
- Map of Furthest Airports from ROA
- List of Furthest Airports from ROA
- Map of Nearest Airports to PHN
- List of Nearest Airports to PHN
- Map of Furthest Airports from PHN
- List of Furthest Airports from PHN
About this route:
A direct, nonstop flight between Roanoke–Blacksburg Regional Airport (ROA), Roanoke, Virginia, United States and St. Clair County International Airport (PHN), Port Huron, Michigan, United States would travel a Great Circle distance of 409 miles (or 658 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 Roanoke–Blacksburg Regional 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:
IATA / ICAO Codes: | ROA / KROA |
Airport Names: |
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Location: | Roanoke, Virginia, United States |
GPS Coordinates: | 37°19'32"N by 79°58'32"W |
Area Served: | Roanoke Valley, New River Valley |
Airport Type: | Public |
Elevation: | 1175 feet (358 meters) |
# of Runways: | 2 |
View all routes: | Routes from ROA |
More Information: | ROA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PHN / KPHN |
Airport Name: | St. Clair County International Airport |
Location: | Port Huron, Michigan, United States |
GPS Coordinates: | 42°54'38"N by 82°31'44"W |
Area Served: | Port Huron, Michigan |
Operator/Owner: | St. Clair County |
Airport Type: | Public |
Elevation: | 650 feet (198 meters) |
# of Runways: | 2 |
View all routes: | Routes from PHN |
More Information: | PHN Maps & Info |
Facts about Roanoke–Blacksburg Regional Airport (ROA):
- In addition to being known as "Roanoke–Blacksburg Regional Airport", another name for ROA is "Woodrum Field".
- As per Federal Aviation Administration records, the airport had 315,293 passenger boardings in calendar year 2008, 297,588 enplanements in 2009, and 316,478 in 2010.
- Roanoke–Blacksburg Regional Airport (ROA) has 2 runways.
- The furthest airport from Roanoke–Blacksburg Regional Airport (ROA) is Margaret River Airport (MGV), which is located 11,559 miles (18,603 kilometers) away in Margaret River, Western Australia, Australia.
- When facilities reached their maximum capacity, the need for upgrades became necessary for the airport to continue to grow.
- Roanoke Regional Airport features a pair of runways originally completed in 1942.
- Shortly after it departed from Asheville Regional Airport in Asheville, North Carolina, on July 19, 1967, Piedmont Airlines Flight 22 collided with a twin-engine Cessna 310 on approach to Asheville.
- The closest airport to Roanoke–Blacksburg Regional Airport (ROA) is Virginia Tech Montgomery Executive Airport (BCB), which is located 25 miles (40 kilometers) WSW of ROA.
Facts about St. Clair County International Airport (PHN):
- 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.
- 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.
- St. Clair County International Airport (PHN) has 2 runways.
- 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.