Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Alton, Illinois, United States:
Departure Airport:
Arrival Airport:
Distance from SEA to ALN:
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- About this route
- SEA Airport Information
- ALN Airport Information
- Facts about SEA
- Facts about ALN
- Map of Nearest Airports to SEA
- List of Nearest Airports to SEA
- Map of Furthest Airports from SEA
- List of Furthest Airports from SEA
- 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 Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,715 miles (or 2,760 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 relatively short distance between Seattle–Tacoma International Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | SEA / KSEA |
Airport Names: |
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Location: | SeaTac (near Seattle and Tacoma), Washington, United States |
GPS Coordinates: | 47°26'56"N by 122°18'33"W |
Area Served: | Seattle; Tacoma, Washington, US |
Airport Type: | Public |
Elevation: | 433 feet (132 meters) |
# of Runways: | 3 |
View all routes: | Routes from SEA |
More Information: | SEA 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 Seattle–Tacoma International Airport (SEA):
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
- The South Satellite Terminal has reached its maximum capacity for handling international passengers in terms of immigration check stands as well as customs declaration.
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- The airport has a Central Terminal building, which was renovated and expanded in 2003.
- The airport has service to destinations throughout North America, Europe, the Middle East, and East Asia.
- The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
- Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma 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.
- The airport was constructed by the Port of Seattle in 1944 to serve civilians of the region, after the U.S.
- The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
- The three parallel runways run nearly north–south, west of the passenger terminal, and are 8,500 to 11,900 feet long.
- Starting in the late 1980s, the Port of Seattle and a council representing local county governments considered the future of air traffic in the region and predicted that airport could reach capacity by 2000.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
Facts about St. Louis Regional Airport (ALN):
- West Star Aviation is the largest fixed base operations company at the airport.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.