Nonstop flight route between Dayton, Ohio, United States and Port Huron, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from DAY to PHN:
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- About this route
- DAY Airport Information
- PHN Airport Information
- Facts about DAY
- Facts about PHN
- Map of Nearest Airports to DAY
- List of Nearest Airports to DAY
- Map of Furthest Airports from DAY
- List of Furthest Airports from DAY
- Map of Nearest Airports to PHN
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About this route:
A direct, nonstop flight between James M. Cox Dayton International Airport (DAY), Dayton, Ohio, United States and St. Clair County International Airport (PHN), Port Huron, Michigan, United States would travel a Great Circle distance of 226 miles (or 363 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 James M. Cox Dayton 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:
IATA / ICAO Codes: | DAY / KDAY |
Airport Name: | James M. Cox Dayton International Airport |
Location: | Dayton, Ohio, United States |
GPS Coordinates: | 39°54'7"N by 84°13'9"W |
Operator/Owner: | City of Dayton |
Airport Type: | Public |
Elevation: | 1009 feet (308 meters) |
# of Runways: | 3 |
View all routes: | Routes from DAY |
More Information: | DAY 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 James M. Cox Dayton International Airport (DAY):
- On December 17, 1936 the airport opened as the "Dayton Municipal Airport" with three 3,600-foot concrete runways and connecting taxiways.
- Taxicab service is available at curbside.
- The furthest airport from James M. Cox Dayton International Airport (DAY) is Margaret River Airport (MGV), which is located 11,296 miles (18,178 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to James M. Cox Dayton International Airport (DAY) is Wright-Patterson Air Force Base (FFO), which is located only 11 miles (17 kilometers) ESE of DAY.
- A$50 million renovation of the airport's terminal building, designed by Levin Porter Associates, was completed in 1989.
- James M. Cox Dayton International Airport (DAY) has 3 runways.
- In 1998 the airport started renovating the terminal building.
- The airport began a multi-year project in October 2006 to the perimeter roadway network to provide access around the airfield and to enhance safety by eliminating vehicle crossing of runways and taxiways.
Facts about St. Clair County International Airport (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.
- St. Clair County International Airport (PHN) has 2 runways.
- 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 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.