Nonstop flight route between Jacksonville, Illinois, United States and Marathon, Florida, United States:
Departure Airport:

Arrival Airport:

Distance from IJX to MTH:
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- About this route
- IJX Airport Information
- MTH Airport Information
- Facts about IJX
- Facts about MTH
- Map of Nearest Airports to IJX
- List of Nearest Airports to IJX
- Map of Furthest Airports from IJX
- List of Furthest Airports from IJX
- Map of Nearest Airports to MTH
- List of Nearest Airports to MTH
- Map of Furthest Airports from MTH
- List of Furthest Airports from MTH
About this route:
A direct, nonstop flight between Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX), Jacksonville, Illinois, United States and Florida Keys Marathon Airport (MTH), Marathon, Florida, United States would travel a Great Circle distance of 395 miles (or 636 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 Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 and Florida Keys Marathon Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | IJX / KIJX |
Airport Name: | Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 |
Location: | Jacksonville, Illinois, United States |
GPS Coordinates: | 30°25'12"N by 81°38'24"W |
Elevation: | 20 feet (6 meters) |
View all routes: | Routes from IJX |
More Information: | IJX Maps & Info |
Arrival 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 |
Facts about Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX):
- In 1970 Webb International Inc.
- Because of Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1's relatively low elevation of 20 feet, planes can take off or land at Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 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 antisubmarine mission was turned over to the United States Navy in mid-1943, and Naval Auxiliary Air Station Jacksonville began to operate Consolidated PB4Y-1 long range bombers from Jacksonville AAF equipped with antisubmarine equipment.
- The closest airport to Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX) is Jacksonville International Airport (JAX), which is located only 6 miles (9 kilometers) NNW of IJX.
- The furthest airport from Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX) is Shark Bay Airport (MJK), which is located 11,460 miles (18,442 kilometers) away in Monkey Mia, Western Australia, Australia.
- With the closure of the base by Technical Service Command, a small portion of Jacksonville Army Airfield was transferred to the jurisdiction of Fourteenth Air Force on 15 December 1946 for subsequent use by postwar reserve forces.
Facts about Florida Keys Marathon Airport (MTH):
- 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.
- 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.
- 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.
- 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.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.