Nonstop flight route between Marathon, Florida, United States and Þórshöfn, Iceland:
Departure Airport:

Arrival Airport:

Distance from MTH to THO:
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- About this route
- MTH Airport Information
- THO Airport Information
- Facts about MTH
- Facts about THO
- 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 THO
- List of Nearest Airports to THO
- Map of Furthest Airports from THO
- List of Furthest Airports from THO
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Þórshöfn Airport (THO), Þórshöfn, Iceland would travel a Great Circle distance of 3,991 miles (or 6,423 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 large distance between Florida Keys Marathon Airport and Þórshöfn Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Florida Keys Marathon Airport and Þórshöfn Airport. You'll see that it will travel the same route of the red line on this map!
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: | THO / BITN |
Airport Names: |
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Location: | Þórshöfn, Iceland |
GPS Coordinates: | 66°13'5"N by 15°20'8"W |
Area Served: | Þórshöfn, Iceland |
Operator/Owner: | ISAVIA |
Airport Type: | Public |
Elevation: | 64 feet (20 meters) |
# of Runways: | 1 |
View all routes: | Routes from THO |
More Information: | THO Maps & Info |
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.
- 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.
- 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.
- In mid summer of 2007, Delta announced it would end service to Marathon Airport due to low demand.
- 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.
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
- 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.
Facts about Þórshöfn Airport (THO):
- In addition to being known as "Þórshöfn Airport", another name for THO is "Þórshafnarflugvöllur".
- Because of Þórshöfn Airport's relatively low elevation of 64 feet, planes can take off or land at Þórshöfn 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 Þórshöfn Airport (THO) is Vopnafjörður Airport (VPN), which is located 37 miles (60 kilometers) SSE of THO.
- Þórshöfn Airport (THO) currently has only 1 runway.
- The furthest airport from Þórshöfn Airport (THO) is Ryan's Creek Aerodrome (SZS), which is located 11,096 miles (17,857 kilometers) away in Stewart Island, New Zealand.