Nonstop flight route between Marathon, Florida, United States and San Antonio, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from MTH to SAT:
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- About this route
- MTH Airport Information
- SAT Airport Information
- Facts about MTH
- Facts about SAT
- 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 SAT
- List of Nearest Airports to SAT
- Map of Furthest Airports from SAT
- List of Furthest Airports from SAT
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and San Antonio International Airport (SAT), San Antonio, Texas, United States would travel a Great Circle distance of 1,120 miles (or 1,803 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 San Antonio 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: | SAT / KSAT |
Airport Name: | San Antonio International Airport |
Location: | San Antonio, Texas, United States |
GPS Coordinates: | 29°31'36"N by 98°28'18"W |
Area Served: | San Antonio–New Braunfels |
Operator/Owner: | City of San Antonio |
Airport Type: | Public |
Elevation: | 809 feet (247 meters) |
# of Runways: | 3 |
View all routes: | Routes from SAT |
More Information: | SAT Maps & Info |
Facts about Florida Keys Marathon Airport (MTH):
- 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.
- 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.
- 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.
- 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.
- 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 San Antonio International Airport (SAT):
- The longest flight from San Antonio International Airport is to Seattle–Tacoma International Airport, a distance of 1,776 miles, with an average duration of 4 hours 7 minutes.
- On November 9, 2010, San Antonio International Airport announced the opening of the brand new Terminal B, which contains 8 gates,.
- In 1975 the city adopted its first Airport Master Plan with plans for a new 1,300 space parking garage and a new 360,000 sq ft Terminal.
- San Antonio International Airport (SAT) has 3 runways.
- Because of San Antonio International Airport's relatively low elevation of 809 feet, planes can take off or land at San Antonio 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.
- San Antonio International Airport handled 8,034,720 passengers last year.
- The furthest airport from San Antonio International Airport (SAT) is Sir Gaëtan Duval Airport (RRG), which is located 11,114 miles (17,886 kilometers) away in Rodrigues Island, Mauritius.
- The 77th Reconnaissance Group, equipped with various aircraft trained reconnaissance personnel who later served overseas.
- The closest airport to San Antonio International Airport (SAT) is Randolph Air Force Base Joint Base San Antonio (RND), which is located only 12 miles (19 kilometers) E of SAT.
- In 1994 a second Airport Master Plan was developed that would take the airport well into the 21st century.