Nonstop flight route between Marathon, Florida, United States and Springfield, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from MTH to SPI:
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- About this route
- MTH Airport Information
- SPI Airport Information
- Facts about MTH
- Facts about SPI
- 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 SPI
- List of Nearest Airports to SPI
- Map of Furthest Airports from SPI
- List of Furthest Airports from SPI
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Abraham Lincoln Capital Airport (SPI), Springfield, Illinois, United States would travel a Great Circle distance of 1,158 miles (or 1,864 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 Abraham Lincoln Capital 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: | SPI / KSPI |
Airport Name: | Abraham Lincoln Capital Airport |
Location: | Springfield, Illinois, United States |
GPS Coordinates: | 39°50'39"N by 89°40'41"W |
Area Served: | Springfield, Illinois |
Operator/Owner: | Springfield Airport Authority |
Airport Type: | Public |
Elevation: | 598 feet (182 meters) |
# of Runways: | 3 |
View all routes: | Routes from SPI |
More Information: | SPI Maps & Info |
Facts about Florida Keys Marathon Airport (MTH):
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
- 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.
- 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.
- 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.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
Facts about Abraham Lincoln Capital Airport (SPI):
- Because of Abraham Lincoln Capital Airport's relatively low elevation of 598 feet, planes can take off or land at Abraham Lincoln Capital 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.
- Allegiant Air is the only airline with mainline jets, McDonnell Douglas MD-80s.
- The closest airport to Abraham Lincoln Capital Airport (SPI) is Decatur Airport (DEC), which is located 43 miles (69 kilometers) E of SPI.
- The furthest airport from Abraham Lincoln Capital Airport (SPI) is Margaret River Airport (MGV), which is located 11,013 miles (17,724 kilometers) away in Margaret River, Western Australia, Australia.
- Abraham Lincoln Capital Airport (SPI) has 3 runways.
- The 183 FW was directed to divest itself of its fighter aircraft pursuant to a Base Realignment and Closure 2005 decision, and in October 2008, the last of the 170th Fighter Squadron's fifteen F-16C/D Fighting Falcon aircraft departed Capital Airport AGS for redistribution to other Air National Guard fighter wings.