Nonstop flight route between Marathon, Florida, United States and Sault Ste Marie, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from MTH to CIU:
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- About this route
- MTH Airport Information
- CIU Airport Information
- Facts about MTH
- Facts about CIU
- Map of Nearest Airports to MTH
- List of Nearest Airports to MTH
- Map of Furthest Airports from MTH
- List of Furthest Airports from MTH
- Map of Nearest Airports to CIU
- List of Nearest Airports to CIU
- Map of Furthest Airports from CIU
- List of Furthest Airports from CIU
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Chippewa County International Airport (CIU), Sault Ste Marie, Michigan, United States would travel a Great Circle distance of 1,499 miles (or 2,413 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 Florida Keys Marathon Airport and Chippewa County International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | MTH / KMTH |
Airport Name: | Florida Keys Marathon Airport |
Location: | Marathon, Florida, United States |
GPS Coordinates: | 24°43'33"N by 81°3'5"W |
Operator/Owner: | Monroe County |
Airport Type: | Public |
Elevation: | 7 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from MTH |
More Information: | MTH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CIU / KCIU |
Airport Name: | Chippewa County International Airport |
Location: | Sault Ste Marie, Michigan, United States |
GPS Coordinates: | 46°15'2"N by 84°28'20"W |
Area Served: | Sault Ste. Marie, Michigan |
Operator/Owner: | Chippewa County EDC |
Airport Type: | Public |
Elevation: | 799 feet (244 meters) |
# of Runways: | 2 |
View all routes: | Routes from CIU |
More Information: | CIU Maps & Info |
Facts about Florida Keys Marathon Airport (MTH):
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
- Because of Florida Keys Marathon Airport's relatively low elevation of 7 feet, planes can take off or land at Florida Keys Marathon 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.
- On October 4, 2008, Continental Airlines announced it would begin commercial service to Marathon Airport via a Cape Air codeshare to Southwest Florida International Airport in Fort Myers, with TSA security clearance to occur once on the ground in Fort Myers, if connecting to another flight.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
- Marathon Airport was served by American Eagle Airlines until 2000.
- Marathon Airport was originally constructed by the United States Navy in the early 1940s as Outlying Field Marathon, an auxiliary airfield to Naval Air Station Key West.
- In mid summer of 2007, Delta announced it would end service to Marathon Airport due to low demand.
- The furthest airport from Florida Keys Marathon Airport (MTH) is Cocos (Keeling) Island Airport (CCK), which is located 11,560 miles (18,603 kilometers) away in Cocos Islands, Australia.
Facts about Chippewa County International Airport (CIU):
- Chippewa County International Airport (CIU) has 2 runways.
- The airport opened a new passenger terminal in September 2002.
- The closest airport to Chippewa County International Airport (CIU) is Kincheloe Air Force Base (INR), which is located only 0 mile (0 kilometer) N of CIU.
- Because of Chippewa County International Airport's relatively low elevation of 799 feet, planes can take off or land at Chippewa 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 Chippewa County International Airport (CIU) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.