Nonstop flight route between Marathon, Florida, United States and Spokane, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from MTH to SFF:
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- About this route
- MTH Airport Information
- SFF Airport Information
- Facts about MTH
- Facts about SFF
- 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 SFF
- List of Nearest Airports to SFF
- Map of Furthest Airports from SFF
- List of Furthest Airports from SFF
About this route:
A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Felts Field (SFF), Spokane, Washington, United States would travel a Great Circle distance of 2,532 miles (or 4,075 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 Felts Field, 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 Felts Field. 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: | SFF / KSFF |
Airport Name: | Felts Field |
Location: | Spokane, Washington, United States |
GPS Coordinates: | 47°40'59"N by 117°19'21"W |
Area Served: | Spokane, Washington |
Operator/Owner: | Spokane City-County |
Airport Type: | Public |
Elevation: | 1957 feet (596 meters) |
# of Runways: | 3 |
View all routes: | Routes from SFF |
More Information: | SFF 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.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
- Marathon Airport was served by American Eagle Airlines until 2000.
- 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.
- In mid summer of 2007, Delta announced it would end service to Marathon Airport due to low demand.
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
Facts about Felts Field (SFF):
- Today the airport is used primarily for general aviation activity.
- The closest airport to Felts Field (SFF) is Spokane International Airport (GEG), which is located only 11 miles (17 kilometers) WSW of SFF.
- Felts Field is a public use airport located four nautical miles northeast of the central business district of Spokane, in Spokane County, Washington, United States.
- Felts Field (SFF) has 3 runways.
- The airport has two hard surface runways and one runway on the Spokane River.
- The furthest airport from Felts Field (SFF) is Tôlanaro Airport (FTU), which is located 10,652 miles (17,143 kilometers) away in Tôlanaro, Madagascar.