Nonstop flight route between Portimão, Algarve, Portugal and Siloam Springs, Arkansas, United States:
Departure Airport:

Arrival Airport:

Distance from PRM to SLG:
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- About this route
- PRM Airport Information
- SLG Airport Information
- Facts about PRM
- Facts about SLG
- Map of Nearest Airports to PRM
- List of Nearest Airports to PRM
- Map of Furthest Airports from PRM
- List of Furthest Airports from PRM
- Map of Nearest Airports to SLG
- List of Nearest Airports to SLG
- Map of Furthest Airports from SLG
- List of Furthest Airports from SLG
About this route:
A direct, nonstop flight between Portimão Airport (PRM), Portimão, Algarve, Portugal and Smith Field (SLG), Siloam Springs, Arkansas, United States would travel a Great Circle distance of 4,579 miles (or 7,369 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 Portimão Airport and Smith 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 Portimão Airport and Smith Field. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PRM / LPPM |
Airport Names: |
|
Location: | Portimão, Algarve, Portugal |
GPS Coordinates: | 37°8'51"N by 8°34'46"W |
Area Served: | Portimão |
Airport Type: | Public |
Elevation: | 5 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from PRM |
More Information: | PRM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SLG / KSLG |
Airport Name: | Smith Field |
Location: | Siloam Springs, Arkansas, United States |
GPS Coordinates: | 36°11'30"N by 94°29'23"W |
Area Served: | Siloam Springs, Arkansas |
Operator/Owner: | City of Siloam Springs |
Airport Type: | Public |
Elevation: | 1191 feet (363 meters) |
# of Runways: | 1 |
View all routes: | Routes from SLG |
More Information: | SLG Maps & Info |
Facts about Portimão Airport (PRM):
- Portimão Airport (PRM) currently has only 1 runway.
- The closest airport to Portimão Airport (PRM) is Faro International Airport (FAO), which is located 35 miles (56 kilometers) ESE of PRM.
- In addition to being known as "Portimão Airport", another name for PRM is "Aeródromo Municipal de Portimão".
- Because of Portimão Airport's relatively low elevation of 5 feet, planes can take off or land at Portimão 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.
- The furthest airport from Portimão Airport (PRM) is Dargaville Aerodrome (DGR), which is nearly antipodal to Portimão Airport (meaning Portimão Airport is almost on the exact opposite side of the Earth from Dargaville Aerodrome), and is located 12,276 miles (19,756 kilometers) away in Dargaville, New Zealand.
Facts about Smith Field (SLG):
- The closest airport to Smith Field (SLG) is Northwest Arkansas Regional Airport (XNA), which is located only 12 miles (19 kilometers) ENE of SLG.
- Smith Field (SLG) currently has only 1 runway.
- The furthest airport from Smith Field (SLG) is Margaret River Airport (MGV), which is located 10,763 miles (17,321 kilometers) away in Margaret River, Western Australia, Australia.