Nonstop flight route between Atwater, California, United States and Mattoon/Charleston, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from MER to MTO:
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- About this route
- MER Airport Information
- MTO Airport Information
- Facts about MER
- Facts about MTO
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
- Map of Nearest Airports to MTO
- List of Nearest Airports to MTO
- Map of Furthest Airports from MTO
- List of Furthest Airports from MTO
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Coles County Memorial Airport (MTO), Mattoon/Charleston, Illinois, United States would travel a Great Circle distance of 1,744 miles (or 2,807 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 Castle Airport and Coles County Memorial Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | MER / KMER |
Airport Name: | Castle Airport |
Location: | Atwater, California, United States |
GPS Coordinates: | 37°22'50"N by 120°34'5"W |
Operator/Owner: | Merced County Department of Commerce, Aviation, and Economic Development |
Airport Type: | Public |
Elevation: | 191 feet (58 meters) |
# of Runways: | 1 |
View all routes: | Routes from MER |
More Information: | MER Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | MTO / KMTO |
Airport Name: | Coles County Memorial Airport |
Location: | Mattoon/Charleston, Illinois, United States |
GPS Coordinates: | 39°28'41"N by 88°16'45"W |
Area Served: | Mattoon/Charleston, Illinois |
Operator/Owner: | Coles County Airport Authority |
Airport Type: | Public |
Elevation: | 722 feet (220 meters) |
# of Runways: | 3 |
View all routes: | Routes from MTO |
More Information: | MTO Maps & Info |
Facts about Castle Airport (MER):
- The airport is located at the former Castle Air Force Base which closed in 1995.
- With its central location in the San Joaquin Valley, on the route of the proposed California High-Speed Rail system, and with a large, underdeveloped site, Castle Airport has been submitted as a possible location for the central maintenance facility for the system.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- Castle Airport (MER) currently has only 1 runway.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
- Because of Castle Airport's relatively low elevation of 191 feet, planes can take off or land at Castle 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.
- Castle Air Museum is 500 yards away, displaying over 50 restored World War II, Korean War, and Cold War era aircraft.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
Facts about Coles County Memorial Airport (MTO):
- The furthest airport from Coles County Memorial Airport (MTO) is Margaret River Airport (MGV), which is located 11,091 miles (17,849 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Coles County Memorial Airport's relatively low elevation of 722 feet, planes can take off or land at Coles County Memorial 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.
- Coles County Memorial Airport (MTO) has 3 runways.
- The airport covers 1,225 acres at an elevation of 722 feet.
- The closest airport to Coles County Memorial Airport (MTO) is University of Illinois Willard Airport (CMI), which is located 39 miles (62 kilometers) N of MTO.