Nonstop flight route between Atwater, California, United States and Exmouth, Western Australia, Australia:
Departure Airport:

Arrival Airport:

Distance from MER to LEA:
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- About this route
- MER Airport Information
- LEA Airport Information
- Facts about MER
- Facts about LEA
- 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 LEA
- List of Nearest Airports to LEA
- Map of Furthest Airports from LEA
- List of Furthest Airports from LEA
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and RAAF Learmonth (LEA), Exmouth, Western Australia, Australia would travel a Great Circle distance of 9,047 miles (or 14,559 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 RAAF Learmonth, 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 RAAF Learmonth. 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: | LEA / YPLM |
Airport Names: |
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Location: | Exmouth, Western Australia, Australia |
GPS Coordinates: | 22°14'8"S by 114°5'18"E |
Area Served: | Exmouth, Western Australia |
Operator/Owner: | RAAF/Shire of Exmouth |
Airport Type: | Military/Public |
Elevation: | 19 feet (6 meters) |
# of Runways: | 1 |
View all routes: | Routes from LEA |
More Information: | LEA Maps & Info |
Facts about Castle Airport (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.
- Castle Airport (MER) currently has only 1 runway.
- 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.
- Since the mid-1940s, aircraft maintenance, fuel management, and fire training activities on the base have generated wastes that consist primarily of waste fuels, oils, solvents, and cleaners.
- EPA investigations have been completed at multiple areas of contamination including landfills, discharge areas, chemical disposal areas, fire training areas, fuel spill areas, and polychlorinated biphenyl spill areas.
Facts about RAAF Learmonth (LEA):
- The closest airport to RAAF Learmonth (LEA) is Barrow Island Airport (BWB), which is located 127 miles (204 kilometers) NE of LEA.
- RAAF Learmonth (LEA) currently has only 1 runway.
- Learmonth Airport was ranked 49th in Australia for the number of revenue passengers served in financial year 2012-2013.
- In the mid-1960s, the Federal Government gave its support to plans by the Chief of the Air Staff, Air Marshal Val Hancock, to redevelop Learmonth as a 'bare base', due to its proximity to Indonesia.
- Because of RAAF Learmonth's relatively low elevation of 19 feet, planes can take off or land at RAAF Learmonth 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.
- During World War II a little-known landing field was constructed on the western shore of Exmouth Gulf.
- In addition to being known as "RAAF Learmonth", another name for LEA is "Learmonth Airport".
- The furthest airport from RAAF Learmonth (LEA) is Fernando Luis Ribas Dominicci Airport (SIG), which is nearly antipodal to RAAF Learmonth (meaning RAAF Learmonth is almost on the exact opposite side of the Earth from Fernando Luis Ribas Dominicci Airport), and is located 12,175 miles (19,594 kilometers) away in San Juan, Puerto Rico.
- RAAF Learmonth handled 90,861 passengers last year.