Nonstop flight route between Atwater, California, United States and Havre, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from MER to HVR:
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- About this route
- MER Airport Information
- HVR Airport Information
- Facts about MER
- Facts about HVR
- 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 HVR
- List of Nearest Airports to HVR
- Map of Furthest Airports from HVR
- List of Furthest Airports from HVR
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Havre City-County Airport (HVR), Havre, Montana, United States would travel a Great Circle distance of 943 miles (or 1,518 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 Havre City-County 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: | HVR / KHVR |
Airport Name: | Havre City-County Airport |
Location: | Havre, Montana, United States |
GPS Coordinates: | 48°32'35"N by 109°45'43"W |
Area Served: | Havre, Montana |
Operator/Owner: | City of Havre & Hill County |
Airport Type: | Public |
Elevation: | 2591 feet (790 meters) |
# of Runways: | 2 |
View all routes: | Routes from HVR |
More Information: | HVR 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.
- 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 furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- 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.
- 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.
Facts about Havre City-County Airport (HVR):
- The furthest airport from Havre City-County Airport (HVR) is Sir Gaëtan Duval Airport (RRG), which is located 10,411 miles (16,755 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Havre City-County Airport (HVR) is Shelby Airport (SBX), which is located 96 miles (155 kilometers) W of HVR.
- Havre City-County Airport (HVR) has 2 runways.
- Havre City-County Airport is a public use airport located three nautical miles west of the central business district of Havre, a city in Hill County, Montana, United States.