Nonstop flight route between Suffield, Alberta, Canada and Hyder, Alaska, United States:
Departure Airport:
Arrival Airport:
Distance from YSD to WHD:
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- About this route
 - YSD Airport Information
 - WHD Airport Information
 - Facts about YSD
 - Facts about WHD
 - 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 WHD
 - List of Nearest Airports to WHD
 - Map of Furthest Airports from WHD
 - List of Furthest Airports from WHD
 
About this route:
A direct, nonstop flight between CFB Suffield (YSD), Suffield, Alberta, Canada and Hyder Seaplane Base (WHD), Hyder, Alaska, United States would travel a Great Circle distance of 869 miles (or 1,399 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 Hyder Seaplane Base, 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: | WHD / | 
| Airport Names: | 
                    
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| Location: | Hyder, Alaska, United States | 
| GPS Coordinates: | 55°54'11"N by 130°0'24"W | 
| Area Served: | Hyder, Alaska | 
| Operator/Owner: | Alaska DOT&PF - Southeast Region | 
| Airport Type: | Public | 
| Elevation: | 0 feet (0 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from WHD | 
| More Information: | WHD Maps & Info | 
Facts about CFB Suffield (YSD):
- The closest airport to CFB Suffield (YSD) is Medicine Hat Airport (YXH), which is located 27 miles (43 kilometers) SE of YSD.
 - British Army training has continued at Suffield since 1971, with the shared-use agreement being extended several times.
 - The furthest airport from CFB Suffield (YSD) is Tôlanaro Airport (FTU), which is located 10,339 miles (16,640 kilometers) away in Tôlanaro, Madagascar.
 - 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.
 - 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.
 
Facts about Hyder Seaplane Base (WHD):
- Hyder Seaplane Base (WHD) currently has only 1 runway.
 - In addition to being known as "Hyder Seaplane Base", another name for WHD is "4Z7".
 - Because of Hyder Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hyder Seaplane Base 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.
 - Hyder Seaplane Base has one seaplane landing area designated N/S with a water surface measuring 10,000 by 1,000 feet.
 - The closest airport to Hyder Seaplane Base (WHD) is Stewart Aerodrome (ZST), which is located only 2 miles (4 kilometers) NNE of WHD.
 - The furthest airport from Hyder Seaplane Base (WHD) is Port Alfred Airport (AFD), which is located 10,540 miles (16,962 kilometers) away in Port Alfred, South Africa.
 
