Nonstop flight route between Muscle Shoals, Alabama, United States and Atwater, California, United States:
Departure Airport:

Arrival Airport:

Distance from MSL to MER:
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- About this route
- MSL Airport Information
- MER Airport Information
- Facts about MSL
- Facts about MER
- Map of Nearest Airports to MSL
- List of Nearest Airports to MSL
- Map of Furthest Airports from MSL
- List of Furthest Airports from MSL
- 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 Northwest Alabama Regional Airport (MSL), Muscle Shoals, Alabama, United States and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 1,840 miles (or 2,962 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 Northwest Alabama Regional 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: | MSL / KMSL |
Airport Name: | Northwest Alabama Regional Airport |
Location: | Muscle Shoals, Alabama, United States |
GPS Coordinates: | 34°44'43"N by 87°36'37"W |
Area Served: | Muscle Shoals, Alabama |
Operator/Owner: | Colbert & Lauderdale Counties |
Airport Type: | Public |
Elevation: | 551 feet (168 meters) |
# of Runways: | 2 |
View all routes: | Routes from MSL |
More Information: | MSL 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 Northwest Alabama Regional Airport (MSL):
- As per the Federal Aviation Administration, this airport had 5,061 passenger boardings in calendar year 2008, 6,897 in 2009, and 8,680 in 2010.
- The airport was opened in February 1940, however in 1942 it was taken over by the United States Army Air Forces as a World War II pilot training military airfield.
- The furthest airport from Northwest Alabama Regional Airport (MSL) is Margaret River Airport (MGV), which is located 11,143 miles (17,932 kilometers) away in Margaret River, Western Australia, Australia.
- Pilot training at the airfield apparently ended on May 30, 1944, with the drawdown of AAFTC's pilot training program.
- Northwest Alabama Regional Airport (MSL) has 2 runways.
- Because of Northwest Alabama Regional Airport's relatively low elevation of 551 feet, planes can take off or land at Northwest Alabama Regional 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.
- Historically, Muscle Shoals was served by Southern Airways which operated Douglas DC-9-10 and DC-9-30 jetliners on nonstop and direct flights to Atlanta.
- The closest airport to Northwest Alabama Regional Airport (MSL) is Pryor Field Regional Airport (DCU), which is located 38 miles (62 kilometers) E of MSL.
Facts about Castle Airport (MER):
- 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.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- In 2004, recommendations were made to relocate the 129th Rescue Wing of the California Air National Guard and its associated HC-130, MC-130 and HH-60 aircraft from Moffett Federal Airfield to the former Castle Air Force Base, now Castle Airport.
- Castle Airport (MER) currently has only 1 runway.
- 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.