Nonstop flight route between Gulfport, Mississippi, United States and Marathon, Florida, United States:
Departure Airport:

Arrival Airport:

Distance from GPT to MTH:
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- About this route
- GPT Airport Information
- MTH Airport Information
- Facts about GPT
- Facts about MTH
- Map of Nearest Airports to GPT
- List of Nearest Airports to GPT
- Map of Furthest Airports from GPT
- List of Furthest Airports from GPT
- 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 Gulfport–Biloxi International Airport (GPT), Gulfport, Mississippi, United States and Florida Keys Marathon Airport (MTH), Marathon, Florida, United States would travel a Great Circle distance of 628 miles (or 1,011 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 Gulfport–Biloxi International Airport 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: | GPT / KGPT |
Airport Name: | Gulfport–Biloxi International Airport |
Location: | Gulfport, Mississippi, United States |
GPS Coordinates: | 30°24'25"N by 89°4'11"W |
Area Served: | Gulfport–Biloxi metropolitan area |
Operator/Owner: | Gulfport–Biloxi Regional Airport Authority |
Airport Type: | Public |
Elevation: | 28 feet (9 meters) |
# of Runways: | 2 |
View all routes: | Routes from GPT |
More Information: | GPT 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 Gulfport–Biloxi International Airport (GPT):
- Because of Gulfport–Biloxi International Airport's relatively low elevation of 28 feet, planes can take off or land at Gulfport–Biloxi 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.
- GPT currently has five airlines providing scheduled passenger service to six airports.
- The closest airport to Gulfport–Biloxi International Airport (GPT) is Keesler Air Force Base (BIX), which is located only 9 miles (14 kilometers) E of GPT.
- The furthest airport from Gulfport–Biloxi International Airport (GPT) is Cocos (Keeling) Island Airport (CCK), which is located 11,123 miles (17,900 kilometers) away in Cocos Islands, Australia.
- Due to the large expansion of the United States Air Force as a result of the Cold War, a new lease was obtained for military use of the airport and Gulfport Air Force Base was opened as a joint-use civil/military facility.
- Gulfport–Biloxi International Airport (GPT) has 2 runways.
Facts about Florida Keys Marathon Airport (MTH):
- The Florida Keys Marathon Airport is a public airport located along the Overseas Highway in Marathon, in Monroe County, Florida, United States.
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
- 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.
- 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.
- 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.