Nonstop flight route between Keene, New Hampshire, United States and Atwater, California, United States:
Departure Airport:

Arrival Airport:

Distance from EEN to MER:
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- About this route
- EEN Airport Information
- MER Airport Information
- Facts about EEN
- Facts about MER
- Map of Nearest Airports to EEN
- List of Nearest Airports to EEN
- Map of Furthest Airports from EEN
- List of Furthest Airports from EEN
- 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 Dillant–Hopkins Airport (EEN), Keene, New Hampshire, United States and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 2,544 miles (or 4,094 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 Dillant–Hopkins Airport and Castle Airport, 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 Dillant–Hopkins Airport and Castle Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | EEN / KEEN |
Airport Name: | Dillant–Hopkins Airport |
Location: | Keene, New Hampshire, United States |
GPS Coordinates: | 42°53'53"N by 72°16'14"W |
Operator/Owner: | Keene, New Hampshire |
Airport Type: | City of Keene |
Elevation: | 149 feet (45 meters) |
# of Runways: | 2 |
View all routes: | Routes from EEN |
More Information: | EEN 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 Dillant–Hopkins Airport (EEN):
- The furthest airport from Dillant–Hopkins Airport (EEN) is Margaret River Airport (MGV), which is located 11,700 miles (18,830 kilometers) away in Margaret River, Western Australia, Australia.
- Dillant–Hopkins Airport is a general aviation airport located 2 miles south of the central business district of Keene, in Cheshire County, New Hampshire, USA.
- Dillant–Hopkins Airport (EEN) has 2 runways.
- Because of Dillant–Hopkins Airport's relatively low elevation of 149 feet, planes can take off or land at Dillant–Hopkins 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.
- In 1967 the FAA recommended a $1.8 million series of improvements which would include further extending the runways, the construction of a control tower, improved buildings, and other facilities.
- Initially Dillant–Hopkins provided air service of two flights a day before being forced to fly a single flight a day.
- The closest airport to Dillant–Hopkins Airport (EEN) is Jaffrey Airport - Silver Ranch Airpark (AFN), which is located only 15 miles (24 kilometers) ESE of EEN.
- The city had enjoyed six decades of regularly scheduled airline service since the 1940s with multiple daily flights operated with a mix of commuter, regional prop, and mainline jet service.
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.
- 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.
- 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.
- 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.
- 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 Airport (MER) currently has only 1 runway.