Nonstop flight route between Suffield, Alberta, Canada and Sand Island, Midway Atoll, United States:
Departure Airport:

Arrival Airport:

Distance from YSD to MDY:
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- About this route
- YSD Airport Information
- MDY Airport Information
- Facts about YSD
- Facts about MDY
- 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 MDY
- List of Nearest Airports to MDY
- Map of Furthest Airports from MDY
- List of Furthest Airports from MDY
About this route:
A direct, nonstop flight between CFB Suffield (YSD), Suffield, Alberta, Canada and Henderson Field (MDY), Sand Island, Midway Atoll, United States would travel a Great Circle distance of 3,717 miles (or 5,982 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 CFB Suffield and Henderson Field, 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 CFB Suffield and Henderson Field. You'll see that it will travel the same route of the red line on this map!
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: | MDY / PMDY |
Airport Name: | Henderson Field |
Location: | Sand Island, Midway Atoll, United States |
GPS Coordinates: | 28°12'5"N by 177°22'53"W |
Area Served: | Midway Atoll |
Operator/Owner: | U.S. Dept. of the Interior Fish and Wildlife Service |
Airport Type: | Public |
Elevation: | 18 feet (5 meters) |
# of Runways: | 1 |
View all routes: | Routes from MDY |
More Information: | MDY Maps & Info |
Facts about CFB Suffield (YSD):
- 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.
- 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 closest airport to CFB Suffield (YSD) is Medicine Hat Airport (YXH), which is located 27 miles (43 kilometers) SE of YSD.
- The base has its own radio station, CKBF-FM, which airs programming for both the Canadian and British military personnel stationed at the base.
Facts about Henderson Field (MDY):
- The closest airport to Henderson Field (MDY) is Johnston Atoll Airport (JON), which is located 937 miles (1,508 kilometers) SE of MDY.
- The furthest airport from Henderson Field (MDY) is Lüderitz Airport (LUD), which is located 11,656 miles (18,759 kilometers) away in Luderitz, Namibia.
- Because of Henderson Field's relatively low elevation of 18 feet, planes can take off or land at Henderson Field 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 airfield was previously served by Aloha Airlines with scheduled weekly charter flghts to and from Honolulu utilizing a Boeing 737-200 jetliner.
- Henderson Field was named after Major Lofton R.
- Henderson Field (MDY) currently has only 1 runway.
- After transition from the U.S.