Nonstop flight route between Alderney, Channel Islands, United Kingdom and Marathon, Florida, United States:
Departure Airport:

Arrival Airport:

Distance from ACI to MTH:
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- About this route
- ACI Airport Information
- MTH Airport Information
- Facts about ACI
- Facts about MTH
- Map of Nearest Airports to ACI
- List of Nearest Airports to ACI
- Map of Furthest Airports from ACI
- List of Furthest Airports from ACI
- 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 Alderney Airport (ACI), Alderney, Channel Islands, United Kingdom and Florida Keys Marathon Airport (MTH), Marathon, Florida, United States would travel a Great Circle distance of 4,447 miles (or 7,156 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 Alderney Airport and Florida Keys Marathon 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 Alderney Airport and Florida Keys Marathon Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | ACI / EGJA |
Airport Name: | Alderney Airport |
Location: | Alderney, Channel Islands, United Kingdom |
GPS Coordinates: | 49°42'24"N by 2°12'51"W |
Area Served: | Alderney |
Operator/Owner: | States of Guernsey |
Airport Type: | Public |
Elevation: | 290 feet (88 meters) |
# of Runways: | 3 |
View all routes: | Routes from ACI |
More Information: | ACI 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 Alderney Airport (ACI):
- Alderney is unique amongst Channel Islands airports, in having three operational runways.
- The furthest airport from Alderney Airport (ACI) is Dunedin International Airport (DUD), which is located 11,999 miles (19,310 kilometers) away in Dunedin, Otago, New Zealand.
- Because of Alderney Airport's relatively low elevation of 290 feet, planes can take off or land at Alderney 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.
- Alderney Airport (ACI) has 3 runways.
- The closest airport to Alderney Airport (ACI) is Guernsey Airport (GCI), which is located 26 miles (41 kilometers) SW of ACI.
Facts about Florida Keys Marathon Airport (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.
- 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.
- 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.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.