Nonstop flight route between Pai, Thailand and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from PYY to ALN:
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- About this route
- PYY Airport Information
- ALN Airport Information
- Facts about PYY
- Facts about ALN
- Map of Nearest Airports to PYY
- List of Nearest Airports to PYY
- Map of Furthest Airports from PYY
- List of Furthest Airports from PYY
- 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 Pai Airport (PYY), Pai, Thailand 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 Pai 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 Pai 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: | PYY / |
Airport Name: | Pai Airport |
Location: | Pai, Thailand |
GPS Coordinates: | 19°21'32"N by 98°26'12"E |
Elevation: | 0 feet (0 meters) |
View all routes: | Routes from PYY |
More Information: | PYY 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 Pai Airport (PYY):
- Because of Pai Airport's relatively low elevation of 0 feet, planes can take off or land at Pai 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 Pai Airport (PYY) is Capitán FAP Renán Elías Olivera International Airport (PIO), which is located 11,912 miles (19,170 kilometers) away in Pisco, Peru.
- The closest airport to Pai Airport (PYY) is Mae Hong Son Airport (HGN), which is located 30 miles (49 kilometers) W of PYY.
Facts about St. Louis Regional Airport (ALN):
- 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.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- In the spring of 2004 the airport was at the center of a scandal.
- 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.