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):
- 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.
- 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.
- 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.
- It was estimated that the cost to relocate the 129 RQW to Castle, to include associated military construction costs, could be recouped in seven years.
- 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 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.
- Castle Air Museum is 500 yards away, displaying over 50 restored World War II, Korean War, and Cold War era aircraft.
- 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):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- As per the Federal Aviation Administration, this airport had 180 passenger boardings in calendar year 2008, 744 in 2009, and 961 in 2010.
- Havre City-County Airport (HVR) has 2 runways.
- The closest airport to Havre City-County Airport (HVR) is Shelby Airport (SBX), which is located 96 miles (155 kilometers) W of 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.