Nonstop flight route between Marathon, Florida, United States and Grand Forks, North Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from MTH to GFK:
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- About this route
- MTH Airport Information
- GFK Airport Information
- Facts about MTH
- Facts about GFK
- 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 GFK
- List of Nearest Airports to GFK
- Map of Furthest Airports from GFK
- List of Furthest Airports from GFK
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Grand Forks International Airport (GFK), Grand Forks, North Dakota, United States would travel a Great Circle distance of 1,830 miles (or 2,945 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 Grand Forks 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: | GFK / KGFK |
Airport Name: | Grand Forks International Airport |
Location: | Grand Forks, North Dakota, United States |
GPS Coordinates: | 47°56'57"N by 97°10'33"W |
Operator/Owner: | Grand Forks Regional Airport Authority |
Airport Type: | Public |
Elevation: | 845 feet (258 meters) |
# of Runways: | 4 |
View all routes: | Routes from GFK |
More Information: | GFK Maps & Info |
Facts about Florida Keys Marathon Airport (MTH):
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
- 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.
- Marathon Airport was served by American Eagle Airlines until 2000.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
- 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.
Facts about Grand Forks International Airport (GFK):
- The now closed original passenger terminal at GFK was built in 1964.
- In the mid-2000s, discussion began of upgrading or totally replacing the terminal as it has structural and safety problems and leaves little to no room for expansion.
- Grand Forks International Airport (GFK) has 4 runways.
- A unique attribute of KGFK is that it is the University of North Dakota’s Aerospace program.
- The closest airport to Grand Forks International Airport (GFK) is Grand Forks Air Force Base (RDR), which is located only 10 miles (17 kilometers) W of GFK.
- Because of Grand Forks International Airport's relatively low elevation of 845 feet, planes can take off or land at Grand Forks 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 Grand Forks International Airport (GFK) is Margaret River Airport (MGV), which is located 10,514 miles (16,921 kilometers) away in Margaret River, Western Australia, Australia.
- On October 3, 2012, United Airlines started flights between Denver, CO and Grand Forks, but on September 10, 2013 they announced they would end service on December 3, 2013 citing low loads.
- The airport, sometimes called Mark Andrews International Airport after Mark Andrews, a former U.S.