Nonstop flight route between Atwater, California, United States and Armidale, New South Wales, Australia:
Departure Airport:

Arrival Airport:

Distance from MER to ARM:
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- About this route
- MER Airport Information
- ARM Airport Information
- Facts about MER
- Facts about ARM
- 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 ARM
- List of Nearest Airports to ARM
- Map of Furthest Airports from ARM
- List of Furthest Airports from ARM
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Armidale Airport (ARM), Armidale, New South Wales, Australia would travel a Great Circle distance of 7,351 miles (or 11,831 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 Castle Airport and Armidale 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 Castle Airport and Armidale Airport. You'll see that it will travel the same route of the red line on this map!
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: | ARM / YARM |
Airport Name: | Armidale Airport |
Location: | Armidale, New South Wales, Australia |
GPS Coordinates: | 30°31'41"S by 151°37'0"E |
Area Served: | Armidale, New South Wales, Australia |
Operator/Owner: | Armidale Dumaresq Shire |
Airport Type: | Public |
Elevation: | 3556 feet (1,084 meters) |
# of Runways: | 2 |
View all routes: | Routes from ARM |
More Information: | ARM Maps & Info |
Facts about Castle Airport (MER):
- The airport is located at the former Castle Air Force Base which closed in 1995.
- 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.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
- 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.
- 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.
Facts about Armidale Airport (ARM):
- Armidale Airport (ARM) has 2 runways.
- The closest airport to Armidale Airport (ARM) is Inverell Airport (IVR), which is located 52 miles (84 kilometers) NNW of ARM.
- Hazelton Airlines, an affiliate of Ansett Australia, operated between Sydney and Armidale from 1989 until the company collapsed in 2002.
- The furthest airport from Armidale Airport (ARM) is Santa Maria Airport (SMA), which is located 11,955 miles (19,239 kilometers) away in Santa Maria, Portugal.
- A Tamworth-Armidale-Brisbane route was served by QantasLink until 2002, when the service was taken over by MacAir Airlines until January 2003, after which time it was operated by Sunshine Express Airlines before the company ceased scheduled flying in 2006.