Nonstop flight route between Marathon, Florida, United States and Blountville, Tennessee (Tri-Cities area), United States:
Departure Airport:

Arrival Airport:

Distance from MTH to TRI:
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- About this route
- MTH Airport Information
- TRI Airport Information
- Facts about MTH
- Facts about TRI
- 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 TRI
- List of Nearest Airports to TRI
- Map of Furthest Airports from TRI
- List of Furthest Airports from TRI
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Tri-Cities Regional Airport (TRI), Blountville, Tennessee (Tri-Cities area), United States would travel a Great Circle distance of 816 miles (or 1,313 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 Tri-Cities Regional 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: | TRI / KTRI |
Airport Names: |
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Location: | Blountville, Tennessee (Tri-Cities area), United States |
GPS Coordinates: | 36°28'31"N by 82°24'26"W |
Area Served: | Tri-Cities, Tennessee |
Operator/Owner: | Tri-Cities Airport Commission |
Airport Type: | Public |
Elevation: | 1519 feet (463 meters) |
# of Runways: | 2 |
View all routes: | Routes from TRI |
More Information: | TRI 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.
- 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.
- Marathon Airport was served by American Eagle Airlines until 2000.
- 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.
- 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.
Facts about Tri-Cities Regional Airport (TRI):
- American Airlines pulled out in 1952.
- Tri-Cities Regional Airport (TRI) has 2 runways.
- In addition to being known as "Tri-Cities Regional Airport", another name for TRI is "Tri-Cities Regional Airport, TN/VA".
- The furthest airport from Tri-Cities Regional Airport (TRI) is Margaret River Airport (MGV), which is located 11,434 miles (18,402 kilometers) away in Margaret River, Western Australia, Australia.
- Federal Aviation Administration records say the airport had 202,730 passenger boardings in calendar year 2008, 217,783 in 2009 and 202,114 in 2010.
- The closest airport to Tri-Cities Regional Airport (TRI) is Virginia Highlands Airport (VJI), which is located 25 miles (41 kilometers) NE of TRI.