Nonstop flight route between Alton, Illinois, United States and Niuafo'ou, Tonga:
Departure Airport:

Arrival Airport:

Distance from ALN to NFO:
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- About this route
- ALN Airport Information
- NFO Airport Information
- Facts about ALN
- Facts about NFO
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to NFO
- List of Nearest Airports to NFO
- Map of Furthest Airports from NFO
- List of Furthest Airports from NFO
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Mata'aho Airport (NFO), Niuafo'ou, Tonga would travel a Great Circle distance of 6,658 miles (or 10,715 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 St. Louis Regional Airport and Mata'aho 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 St. Louis Regional Airport and Mata'aho Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | NFO / NFTO |
Airport Name: | Mata'aho Airport |
Location: | Niuafo'ou, Tonga |
GPS Coordinates: | 15°34'15"S by 175°37'50"W |
Operator/Owner: | Ministry of Civil Aviation |
Airport Type: | Public |
View all routes: | Routes from NFO |
More Information: | NFO Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- In the spring of 2004 the airport was at the center of a scandal.
Facts about Mata'aho Airport (NFO):
- The furthest airport from Mata'aho Airport (NFO) is Tahoua Airport (THZ), which is nearly antipodal to Mata'aho Airport (meaning Mata'aho Airport is almost on the exact opposite side of the Earth from Tahoua Airport), and is located 12,360 miles (19,892 kilometers) away in Tahoua, Niger.
- The closest airport to Mata'aho Airport (NFO) is Wallis Island (WLS), which is located 164 miles (263 kilometers) NNW of NFO.