Nonstop flight route between Moses Lake, Washington, United States and Atwater, California, United States:
Departure Airport:

Arrival Airport:

Distance from MWH to MER:
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- About this route
- MWH Airport Information
- MER Airport Information
- Facts about MWH
- Facts about MER
- Map of Nearest Airports to MWH
- List of Nearest Airports to MWH
- Map of Furthest Airports from MWH
- List of Furthest Airports from MWH
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
About this route:
A direct, nonstop flight between Grant County International Airport (MWH), Moses Lake, Washington, United States and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 682 miles (or 1,098 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 Grant County International Airport and Castle Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | MWH / KMWH |
Airport Name: | Grant County International Airport |
Location: | Moses Lake, Washington, United States |
GPS Coordinates: | 47°12'30"N by 119°19'9"W |
Area Served: | Moses Lake, Washington |
Operator/Owner: | Port of Moses Lake |
Airport Type: | Public |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 5 |
View all routes: | Routes from MWH |
More Information: | MWH Maps & Info |
Arrival 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 |
Facts about Grant County International Airport (MWH):
- Grant County International Airport (MWH) has 5 runways.
- The furthest airport from Grant County International Airport (MWH) is Tôlanaro Airport (FTU), which is located 10,730 miles (17,268 kilometers) away in Tôlanaro, Madagascar.
- Grant County International Airport was an alternate landing site for the NASA Space Shuttle.
- In 2011, the 92nd Air Refueling Wing at Fairchild AFB in Spokane temporarily moved its KC-135 R/T fleet and operations to Moses Lake while Fairchild's runway underwent reconstruction and other infrastructure improvements, to include an upgrade to the base's aviation fuel distribution system.
- The closest airport to Grant County International Airport (MWH) is Ephrata Municipal Airport (EPH), which is located only 12 miles (19 kilometers) NW of MWH.
Facts about Castle Airport (MER):
- 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 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.
- Castle Airport (MER) currently has only 1 runway.
- 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 is a public use airport located seven nautical miles northwest of the central business district of Merced, a city in Merced County, California, United States.
- It serves one school, Sierra Academy of Aeronautics, which specializes in training foreign pilots, from the People's Republic of China.
- 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.
- It was estimated that the cost to relocate the 129 RQW to Castle, to include associated military construction costs, could be recouped in seven years.