Nonstop flight route between Salmon, Idaho, United States and Williams Harbour, Newfoundland and Labrador, Canada:
Departure Airport:

Arrival Airport:

Distance from SMN to YWM:
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- About this route
- SMN Airport Information
- YWM Airport Information
- Facts about SMN
- Facts about YWM
- Map of Nearest Airports to SMN
- List of Nearest Airports to SMN
- Map of Furthest Airports from SMN
- List of Furthest Airports from SMN
- Map of Nearest Airports to YWM
- List of Nearest Airports to YWM
- Map of Furthest Airports from YWM
- List of Furthest Airports from YWM
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Williams Harbour Airport (YWM), Williams Harbour, Newfoundland and Labrador, Canada would travel a Great Circle distance of 2,617 miles (or 4,211 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 Lemhi County Airport and Williams Harbour Airport, 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 Lemhi County Airport and Williams Harbour Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SMN / KSMN |
Airport Name: | Lemhi County Airport |
Location: | Salmon, Idaho, United States |
GPS Coordinates: | 45°7'26"N by 113°52'53"W |
Operator/Owner: | Lemhi County |
Airport Type: | Public |
Elevation: | 4043 feet (1,232 meters) |
# of Runways: | 1 |
View all routes: | Routes from SMN |
More Information: | SMN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | YWM / |
Airport Names: |
|
Location: | Williams Harbour, Newfoundland and Labrador, Canada |
GPS Coordinates: | 52°34'3"N by 55°47'5"W |
Operator/Owner: | Government of Newfoundland and Labrador |
Airport Type: | Public |
Elevation: | 73 feet (22 meters) |
# of Runways: | 1 |
View all routes: | Routes from YWM |
More Information: | YWM Maps & Info |
Facts about Lemhi County Airport (SMN):
- The furthest airport from Lemhi County Airport (SMN) is Tôlanaro Airport (FTU), which is located 10,686 miles (17,197 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Lemhi County Airport (SMN) is Challis Airport (CHL), which is located 45 miles (72 kilometers) SSW of SMN.
- Lemhi County Airport (SMN) currently has only 1 runway.
- Because of Lemhi County Airport's high elevation of 4,043 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SMN. Combined with a high temperature, this could make SMN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
Facts about Williams Harbour Airport (YWM):
- Williams Harbour Airport (YWM) currently has only 1 runway.
- The closest airport to Williams Harbour Airport (YWM) is St. Lewis (Fox Harbour) Airport (YFX), which is located only 14 miles (23 kilometers) SSE of YWM.
- The furthest airport from Williams Harbour Airport (YWM) is Albany Airport (ALH), which is located 11,179 miles (17,991 kilometers) away in Albany, Western Australia, Australia.
- In addition to being known as "Williams Harbour Airport", another name for YWM is "CCA6".
- Because of Williams Harbour Airport's relatively low elevation of 73 feet, planes can take off or land at Williams Harbour 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.