Nonstop flight route between Hao, Tuamotu Island, French Polynesia and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from HOI to ALN:
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- About this route
- HOI Airport Information
- ALN Airport Information
- Facts about HOI
- Facts about ALN
- Map of Nearest Airports to HOI
- List of Nearest Airports to HOI
- Map of Furthest Airports from HOI
- List of Furthest Airports from HOI
- 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 Hao Airport (HOI), Hao, Tuamotu Island, French Polynesia and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 5,128 miles (or 8,253 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 Hao 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 Hao 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: | HOI / NTTO |
Airport Name: | Hao Airport |
Location: | Hao, Tuamotu Island, French Polynesia |
GPS Coordinates: | 18°4'28"S by 140°56'44"W |
Area Served: | Hao Island |
Operator/Owner: | DSEAC Polynésie Française |
Airport Type: | Public |
# of Runways: | 1 |
View all routes: | Routes from HOI |
More Information: | HOI 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 Hao Airport (HOI):
- The furthest airport from Hao Airport (HOI) is Port Sudan New International Airport (PZU), which is nearly antipodal to Hao Airport (meaning Hao Airport is almost on the exact opposite side of the Earth from Port Sudan New International Airport), and is located 12,285 miles (19,771 kilometers) away in Port Sudan, Sudan.
- The closest airport to Hao Airport (HOI) is Fangatau Airport (FGU), which is located 156 miles (251 kilometers) N of HOI.
- Hao Airport (HOI) currently has only 1 runway.
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.
- St. Louis Regional Airport (ALN) has 2 runways.
- In the spring of 2004 the airport was at the center of a scandal.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.