Nonstop flight route between Dipolog City, Zamboanga del Norte, Philippines and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Dipolog Airport (DPL), Dipolog City, Zamboanga del Norte, Philippines and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 8,518 miles (or 13,708 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 Dipolog 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 Dipolog 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:

Arrival Airport Information:

Facts about Dipolog Airport (DPL):

• Because of Dipolog Airport's relatively low elevation of 12 feet, planes can take off or land at Dipolog 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 "Dipolog Airport", another name for DPL is "Paliparan ng Dipolog".
• Dipolog Airport handled 165,163 passengers last year.
• Dipolog Airport (DPL) currently has only 1 runway.
• The late 1980s saw a dramatic upsurge in foreign tourist arrival.
• The airport is expected to handle more than 150,000 passengers per year by 2009 or an average of 415 daily passengers, which is equivalent to 3 narrow-body aircraft flights or two flights using one wide-body and one narrow-body aircraft.
• There is also a mini-garden at the runway side of the terminal that contains a grotto.
• The closest airport to Dipolog Airport (DPL) is Labo Airport (OZC), which is located 45 miles (73 kilometers) SE of DPL.
• The furthest airport from Dipolog Airport (DPL) is Piloto Osvaldo Marques Dias Airport (AFL), which is nearly antipodal to Dipolog Airport (meaning Dipolog Airport is almost on the exact opposite side of the Earth from Piloto Osvaldo Marques Dias Airport), and is located 12,341 miles (19,862 kilometers) away in Alta Floresta, Brazil.
• Commercial operation by Philippine Airlines commenced in 1952 utilizing a Douglas DC-3 aircraft for routes to and from Cebu City and Zamboanga City.

Facts about St. Louis Regional Airport (ALN):

• 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 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.
• 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.
• 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.