Nonstop flight route between Salmon, Idaho, United States and Nanchong, Sichuan, China:
Departure Airport:

Arrival Airport:

Distance from SMN to NAO:
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- About this route
- SMN Airport Information
- NAO Airport Information
- Facts about SMN
- Facts about NAO
- 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 NAO
- List of Nearest Airports to NAO
- Map of Furthest Airports from NAO
- List of Furthest Airports from NAO
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Nanchong Gaoping Airport (NAO), Nanchong, Sichuan, China would travel a Great Circle distance of 6,620 miles (or 10,654 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 Nanchong Gaoping 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 Nanchong Gaoping 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: | NAO / ZUNC |
Airport Names: |
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Location: | Nanchong, Sichuan, China |
GPS Coordinates: | 30°47'38"N by 106°9'34"E |
Airport Type: | Public |
# of Runways: | 1 |
View all routes: | Routes from NAO |
More Information: | NAO Maps & Info |
Facts about Lemhi County Airport (SMN):
- 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.
- Lemhi County Airport (SMN) currently has only 1 runway.
- 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.
Facts about Nanchong Gaoping Airport (NAO):
- The furthest airport from Nanchong Gaoping Airport (NAO) is La Florida Airport (LSC), which is nearly antipodal to Nanchong Gaoping Airport (meaning Nanchong Gaoping Airport is almost on the exact opposite side of the Earth from La Florida Airport), and is located 12,268 miles (19,744 kilometers) away in La Serena, Chile.
- In addition to being known as "Nanchong Gaoping Airport", other names for NAO include "南充高坪机场" and "Nanchong Gaoping Jīchǎng".
- Nanchong Gaoping Airport (NAO) currently has only 1 runway.
- The closest airport to Nanchong Gaoping Airport (NAO) is Dazhou Heshi Airport (DAX), which is located 79 miles (127 kilometers) ENE of NAO.