Nonstop flight route between O'Neill, Nebraska, United States and Atwater, California, United States:
Departure Airport:

Arrival Airport:

Distance from ONL to MER:
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- About this route
- ONL Airport Information
- MER Airport Information
- Facts about ONL
- Facts about MER
- Map of Nearest Airports to ONL
- List of Nearest Airports to ONL
- Map of Furthest Airports from ONL
- List of Furthest Airports from ONL
- 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 O'Neill Municipal Airport (ONL), O'Neill, Nebraska, United States and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 1,208 miles (or 1,943 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 O'Neill Municipal 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: | ONL / KONL |
Airport Names: |
|
Location: | O'Neill, Nebraska, United States |
GPS Coordinates: | 42°28'9"N by 98°41'13"W |
Area Served: | O'Neill, Nebraska |
Operator/Owner: | O'Neill Airport Authority |
Airport Type: | Public |
Elevation: | 2031 feet (619 meters) |
# of Runways: | 1 |
View all routes: | Routes from ONL |
More Information: | ONL 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 O'Neill Municipal Airport (ONL):
- The furthest airport from O'Neill Municipal Airport (ONL) is Sir Gaëtan Duval Airport (RRG), which is located 10,551 miles (16,980 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to O'Neill Municipal Airport (ONL) is Ainsworth Regional Airport (ANW), which is located 67 miles (108 kilometers) W of ONL.
- O'Neill Municipal Airport (ONL) currently has only 1 runway.
- In addition to being known as "O'Neill Municipal Airport", another name for ONL is "John L. Baker Field".
Facts about Castle Airport (MER):
- 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.
- The EPA currently has this base listed on their database due to the bulk wastes such as solvents, oils, fuels, and sludges which were disposed in pits at landfills around the base until 1977.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- 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 airport is located at the former Castle Air Force Base which closed in 1995.
- 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 closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.