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

Arrival Airport:

Distance from RFD to MTH:
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- About this route
- RFD Airport Information
- MTH Airport Information
- Facts about RFD
- Facts about MTH
- Map of Nearest Airports to RFD
- List of Nearest Airports to RFD
- Map of Furthest Airports from RFD
- List of Furthest Airports from RFD
- 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 Chicago Rockford International Airport (RFD), Rockford, Illinois, United States and Florida Keys Marathon Airport (MTH), Marathon, Florida, United States would travel a Great Circle distance of 1,291 miles (or 2,078 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 Chicago Rockford International Airport and Florida Keys Marathon Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | RFD / KRFD |
Airport Name: | Chicago Rockford International Airport |
Location: | Rockford, Illinois, United States |
GPS Coordinates: | 42°11'43"N by 89°5'49"W |
Area Served: | Rockford, Illinois |
Operator/Owner: | Greater Rockford Airport Authority |
Airport Type: | Public |
Elevation: | 742 feet (226 meters) |
# of Runways: | 2 |
View all routes: | Routes from RFD |
More Information: | RFD 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 Chicago Rockford International Airport (RFD):
- Following the war, the state of Illinois adopted the Airport Authority Act.
- Chicago Rockford International Airport (RFD) has 2 runways.
- Because of Chicago Rockford International Airport's relatively low elevation of 742 feet, planes can take off or land at Chicago Rockford International 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.
- Today the Rockford airport is marketed to residents of Rockford and surrounding areas as an alternative to Chicago Midway International Airport and O'Hare International Airport in Chicago, Mitchell International Airport in Milwaukee, WI and Dane County Regional Airport in Madison, Wisconsin as well as limited service airports such as Dubuque Regional Airport in Iowa.
- The current terminal was built in 1987 in an effort to expand airline service in Rockford, but the common use of bus service to O'Hare International Airport kept most airlines away from Rockford.
- The furthest airport from Chicago Rockford International Airport (RFD) is Margaret River Airport (MGV), which is located 11,008 miles (17,716 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Chicago Rockford International Airport (RFD) is Southern Wisconsin Regional Airport (JVL), which is located 30 miles (47 kilometers) N of RFD.
- RFD was once the company headquarters for Ryan International Airlines, staging many of its aircraft at the airport for charter hire.
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.
- Marathon Airport was served by American Eagle Airlines until 2000.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of 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.
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
- 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.