Nonstop flight route between Ko Samui, Surat Thani, Thailand and Port Alsworth, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from USM to PTA:
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- About this route
- USM Airport Information
- PTA Airport Information
- Facts about USM
- Facts about PTA
- Map of Nearest Airports to USM
- List of Nearest Airports to USM
- Map of Furthest Airports from USM
- List of Furthest Airports from USM
- Map of Nearest Airports to PTA
- List of Nearest Airports to PTA
- Map of Furthest Airports from PTA
- List of Furthest Airports from PTA
About this route:
A direct, nonstop flight between Samui International Airport (USM), Ko Samui, Surat Thani, Thailand and Port Alsworth Airport (PTA), Port Alsworth, Alaska, United States would travel a Great Circle distance of 6,171 miles (or 9,931 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 Samui International Airport and Port Alsworth 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 Samui International Airport and Port Alsworth Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | USM / VTSM |
Airport Names: |
|
Location: | Ko Samui, Surat Thani, Thailand |
GPS Coordinates: | 9°32'52"N by 100°3'43"E |
Area Served: | Ko Samui |
Operator/Owner: | Bangkok Airways |
Airport Type: | Public |
Elevation: | 64 feet (20 meters) |
# of Runways: | 1 |
View all routes: | Routes from USM |
More Information: | USM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PTA / PALJ |
Airport Names: |
|
Location: | Port Alsworth, Alaska, United States |
GPS Coordinates: | 60°12'15"N by 154°19'8"W |
Area Served: | Port Alsworth, Alaska |
Operator/Owner: | Glen Alsworth, Sr. |
Airport Type: | Private |
Elevation: | 280 feet (85 meters) |
# of Runways: | 1 |
View all routes: | Routes from PTA |
More Information: | PTA Maps & Info |
Facts about Samui International Airport (USM):
- Because of Samui International Airport's relatively low elevation of 64 feet, planes can take off or land at Samui International 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.
- In addition to being known as "Samui International Airport", another name for USM is "ท่าอากาศยานสมุย".
- The closest airport to Samui International Airport (USM) is Surat Thani International Airport (URT), which is located 69 miles (112 kilometers) WSW of USM.
- Samui International Airport (USM) currently has only 1 runway.
- The furthest airport from Samui International Airport (USM) is Teniente FAP Jaime Montreuil Morales Airport (CHM), which is nearly antipodal to Samui International Airport (meaning Samui International Airport is almost on the exact opposite side of the Earth from Teniente FAP Jaime Montreuil Morales Airport), and is located 12,337 miles (19,854 kilometers) away in Chimbote, Ancash Region, Peru.
Facts about Port Alsworth Airport (PTA):
- Port Alsworth Airport (PTA) currently has only 1 runway.
- Because of Port Alsworth Airport's relatively low elevation of 280 feet, planes can take off or land at Port Alsworth 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.
- In addition to being known as "Port Alsworth Airport", other names for PTA include "TPO" and "Port Alsworth".
- The closest airport to Port Alsworth Airport (PTA) is Nondalton Airport (NNL), which is located 24 miles (38 kilometers) SW of PTA.
- The furthest airport from Port Alsworth Airport (PTA) is Port Elizabeth International Airport (PLZ), which is located 10,625 miles (17,100 kilometers) away in Port Elizabeth, South Africa.