Nonstop flight route between Port Moresby, Papua New Guinea and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from POM to ALN:
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- About this route
- POM Airport Information
- ALN Airport Information
- Facts about POM
- Facts about ALN
- Map of Nearest Airports to POM
- List of Nearest Airports to POM
- Map of Furthest Airports from POM
- List of Furthest Airports from POM
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between Jacksons International Airport (POM), Port Moresby, Papua New Guinea and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 8,375 miles (or 13,478 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 Jacksons International Airport and St. Louis Regional 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 Jacksons International Airport and St. Louis Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | POM / AYPY |
Airport Name: | Jacksons International Airport |
Location: | Port Moresby, Papua New Guinea |
GPS Coordinates: | 9°26'35"S by 147°13'11"E |
Operator/Owner: | PNG National Airports Corporation Ltd |
Airport Type: | Public |
Elevation: | 124 feet (38 meters) |
# of Runways: | 2 |
View all routes: | Routes from POM |
More Information: | POM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ALN / KALN |
Airport Name: | St. Louis Regional Airport |
Location: | Alton, Illinois, United States |
GPS Coordinates: | 38°53'25"N by 90°2'45"W |
Area Served: | Alton, Illinois |
Operator/Owner: | St. Louis Regional |
Airport Type: | Public |
Elevation: | 544 feet (166 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALN |
More Information: | ALN Maps & Info |
Facts about Jacksons International Airport (POM):
- Jacksons International Airport consists of two terminals, the Domestic Terminal, housing Air Niugini and Airlines PNG, and the International Terminal, servicing all other airlines plus Air Niugini and Airlines PNG's international routes.
- The furthest airport from Jacksons International Airport (POM) is São Filipe Airport (SFL), which is located 11,762 miles (18,929 kilometers) away in Fogo, Cape Verde.
- Jacksons International Airport (POM) has 2 runways.
- The closest airport to Jacksons International Airport (POM) is Haelogo Airport (HEO), which is located 33 miles (54 kilometers) NE of POM.
- Because of Jacksons International Airport's relatively low elevation of 124 feet, planes can take off or land at Jacksons 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.
- Air Niugini has its head office in the Air Niugini House, on the airport property.
Facts about St. Louis Regional Airport (ALN):
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- St. Louis Regional Airport (ALN) has 2 runways.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.