Nonstop flight route between Decatur, Illinois, United States and Port Huron, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from DEC to PHN:
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- About this route
- DEC Airport Information
- PHN Airport Information
- Facts about DEC
- Facts about PHN
- Map of Nearest Airports to DEC
- List of Nearest Airports to DEC
- Map of Furthest Airports from DEC
- List of Furthest Airports from DEC
- 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 Decatur Airport (DEC), Decatur, Illinois, United States and St. Clair County International Airport (PHN), Port Huron, Michigan, United States would travel a Great Circle distance of 391 miles (or 629 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 Decatur 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: | DEC / KDEC |
Airport Name: | Decatur Airport |
Location: | Decatur, Illinois, United States |
GPS Coordinates: | 39°50'3"N by 88°51'56"W |
Area Served: | Decatur, Illinois |
Operator/Owner: | Decatur Park District |
Airport Type: | Public |
Elevation: | 682 feet (208 meters) |
# of Runways: | 3 |
View all routes: | Routes from DEC |
More Information: | DEC 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 Decatur Airport (DEC):
- Federal Aviation Administration records say the airport had 1,232 passenger boardings in calendar year 2008, 672 in 2009 and 2,456 in 2010.
- Decatur Airport has a 24,000 square feet passenger terminal with airline counters, a restaurant, baggage claim area and car rental facility.
- Decatur Airport (DEC) has 3 runways.
- Because of Decatur Airport's relatively low elevation of 682 feet, planes can take off or land at Decatur 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 Illinois Army National Guard has an Army Aviation Support Facility at the airport.
- The furthest airport from Decatur Airport (DEC) is Margaret River Airport (MGV), which is located 11,056 miles (17,793 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Decatur Airport (DEC) is University of Illinois Willard Airport (CMI), which is located 34 miles (55 kilometers) ENE of DEC.
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.
- 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.
- St. Clair County International Airport (PHN) has 2 runways.