As an expert in the field of geography and transportation, I have a deep understanding of the intricacies involved in the operation of airports around the world. When it comes to the highest international airports, the distinction is not only about the altitude but also about the challenges and unique features these airports present due to their high elevation.
The El Alto International Airport, as you've mentioned, is indeed one of the highest airports globally. However, it is not the highest. The title of the highest international airport in the world goes to the Chile's El Loa Airport, also known as the Jorge Wilstermann International Airport, which is located in Calama, Chile. This airport sits at an elevation of approximately 4,076 meters (13,373 feet) above sea level, which is a significant height that presents unique operational challenges.
The high altitude of an airport like El Loa affects several aspects of flight operations. For instance, the thinner air at such elevations means that aircraft engines produce less thrust, which can impact takeoff and landing performance. Additionally, the atmospheric pressure is lower, which can affect the aircraft's aerodynamics and the way it handles. Pilots and crew must be specially trained to operate in such conditions, and the airports themselves must be equipped with the necessary facilities to support these operations.
Moreover, the Chile's El Loa Airport serves as a crucial gateway for travelers heading to the Atacama Desert and the mining region of northern Chile. The airport's high elevation not only provides a unique experience for travelers but also plays a significant role in the region's economy by facilitating the movement of people and goods.
It's important to note that altitude affects not just the technical aspects of aviation but also the health and comfort of passengers. High-altitude airports require special considerations for passenger acclimatization to prevent altitude sickness, which can occur due to the reduced oxygen levels at high elevations.
In conclusion, while El Alto International Airport is indeed one of the highest airports in the world, it is not the highest. The distinction belongs to Chile's El Loa Airport, which stands as a testament to human ingenuity and the ability to overcome the challenges presented by nature.

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El Alto International AirportEl Alto International Airport (Aeropuerto Internacional El Alto in Spanish; formerly John F. Kennedy Airport), is the fifth highest-altitude airport in the world. It is located in the city of El Alto, approximately 14km south-west of La Paz City. It is situated at an elevation of 4,061.5m.Nov 5, 2013read more >>