Nonstop flight route between Marathon, Florida, United States and San Diego, California, United States:
Departure Airport:

Arrival Airport:

Distance from MTH to SDM:
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- About this route
- MTH Airport Information
- SDM Airport Information
- Facts about MTH
- Facts about SDM
- 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 SDM
- List of Nearest Airports to SDM
- Map of Furthest Airports from SDM
- List of Furthest Airports from SDM
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Brown Field Municipal Airport (SDM), San Diego, California, United States would travel a Great Circle distance of 2,234 miles (or 3,595 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 Brown Field Municipal 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: | SDM / KSDM |
Airport Name: | Brown Field Municipal Airport |
Location: | San Diego, California, United States |
GPS Coordinates: | 32°34'19"N by 116°58'49"W |
Area Served: | San Diego, California |
Operator/Owner: | City of San Diego |
Airport Type: | Public |
Elevation: | 526 feet (160 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDM |
More Information: | SDM Maps & Info |
Facts about Florida Keys Marathon Airport (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.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
- 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.
- 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 Florida Keys Marathon Airport is a public airport located along the Overseas Highway in Marathon, in Monroe County, Florida, United States.
- However on December 1, 2006, the TSA bowed to the effective lobbying efforts of local government, congressional and business officials when it announced that screeners would be provided at the airport no later than February 15, 2007, even if it meant using a contractor.
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
Facts about Brown Field Municipal Airport (SDM):
- On September 1, 1962 the Navy transferred ownership of Brown Field to the City of San Diego, with the condition that it remains a public airport.
- The closest airport to Brown Field Municipal Airport (SDM) is Tijuana International Airport (TIJ), which is located only 2 miles (4 kilometers) SSE of SDM.
- The furthest airport from Brown Field Municipal Airport (SDM) is Sir Gaëtan Duval Airport (RRG), which is located 11,551 miles (18,590 kilometers) away in Rodrigues Island, Mauritius.
- Because of Brown Field Municipal Airport's relatively low elevation of 526 feet, planes can take off or land at Brown Field Municipal 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.
- Brown Field Municipal Airport (SDM) has 2 runways.
- Brown Field is 1.5 miles north of the US/Mexico border in the Otay Mesa Community of the City of San Diego.
- Brown Field Municipal Airport is in the Otay Mesa neighborhood of San Diego, California, 13 miles southeast of Downtown San Diego and named in honor of Commander Melville S.
- On March 16, 1991, seven members of Reba McEntire's band and her road manager were among 10 people who died in the crash of a plane that departed from Brown Field.