Nonstop flight route between Atwater, California, United States and Houston, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from MER to IWS:
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- About this route
- MER Airport Information
- IWS Airport Information
- Facts about MER
- Facts about IWS
- 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 IWS
- List of Nearest Airports to IWS
- Map of Furthest Airports from IWS
- List of Furthest Airports from IWS
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and West Houston Airport (IWS), Houston, Texas, United States would travel a Great Circle distance of 1,519 miles (or 2,445 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 West Houston 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: | IWS / KIWS |
Airport Name: | West Houston Airport |
Location: | Houston, Texas, United States |
GPS Coordinates: | 29°49'5"N by 95°40'20"W |
Area Served: | Houston, Texas |
Operator/Owner: | West Houston Airport Corp. |
Airport Type: | Public use |
Elevation: | 111 feet (34 meters) |
# of Runways: | 1 |
View all routes: | Routes from IWS |
More Information: | IWS 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.
- 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.
- Castle Airport (MER) currently has only 1 runway.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of 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.
- The airport is located at the former Castle Air Force Base which closed in 1995.
Facts about West Houston Airport (IWS):
- Because of West Houston Airport's relatively low elevation of 111 feet, planes can take off or land at West Houston 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 closest airport to West Houston Airport (IWS) is Andrau Airpark (AAP), which is located only 9 miles (14 kilometers) SE of IWS.
- The furthest airport from West Houston Airport (IWS) is Cocos (Keeling) Island Airport (CCK), which is located 10,979 miles (17,668 kilometers) away in Cocos Islands, Australia.
- West Houston Airport (IWS) currently has only 1 runway.
- On January 3, 2012, a pilot flying a 1985 Cessna 172P with a 180 HP engine from West Houston Airport to Lone Star Executive Airport reported losing power to her aircraft.