Nonstop flight route between Suffield, Alberta, Canada and Atwater, California, United States:
Departure Airport:

Arrival Airport:

Distance from YSD to MER:
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- About this route
- YSD Airport Information
- MER Airport Information
- Facts about YSD
- Facts about MER
- Map of Nearest Airports to YSD
- List of Nearest Airports to YSD
- Map of Furthest Airports from YSD
- List of Furthest Airports from YSD
- 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 CFB Suffield (YSD), Suffield, Alberta, Canada and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 1,005 miles (or 1,617 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 CFB Suffield and Castle Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | YSD / CYSD |
Airport Name: | CFB Suffield |
Location: | Suffield, Alberta, Canada |
GPS Coordinates: | 50°16'23"N by 111°10'29"W |
Operator/Owner: | Government of Canada |
Airport Type: | Military |
Elevation: | 2525 feet (770 meters) |
View all routes: | Routes from YSD |
More Information: | YSD 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 CFB Suffield (YSD):
- Defence Research and Development Canada is an agency of the Canadian Department of National Defence responding to the scientific and technological needs of the Canadian Forces.
- The closest airport to CFB Suffield (YSD) is Medicine Hat Airport (YXH), which is located 27 miles (43 kilometers) SE of YSD.
- The furthest airport from CFB Suffield (YSD) is Tôlanaro Airport (FTU), which is located 10,339 miles (16,640 kilometers) away in Tôlanaro, Madagascar.
- In 1971 an agreement was signed between the British and Canadian governments permitting the British Army to use over three-quarters of the Suffield Block for armoured, infantry, and artillery live-fire training.
- The lands comprising modern-day CFB Suffield were known as the "Suffield Block", resulting from the Dominion Land Survey, and comprised marginal agricultural land, given the perpetual semi-arid climate.
- On August 25, 1971, the Canadian Government ratified a ten-year agreement with the British Government that allowed the British Armed Forces to use the northern three-quarters of the Suffield Block.
Facts about Castle Airport (MER):
- Castle Airport (MER) currently has only 1 runway.
- It serves one school, Sierra Academy of Aeronautics, which specializes in training foreign pilots, from the People's Republic of China.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- 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.
- 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.
- 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.
- 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.