Mexico City country and international connections. There are some intercity buses that leave directly from the Mexico City International Airport. Mexico City is served by Mexico City International Airport (IATA Airport Code: MEX). This airport is Latin America's busiest, with daily flights to United States and Canada, Mexico, Central America and the Caribbean, South America, Europe and Asia. Aeroméxico (Skyteam) is based at this airport, and provide codeshare agreements with non-Mexican airlines that span the entire globe. The airport is also a hub for Volaris, Interjet and Aeromar. In 2016, the airport handled almost 42 million passengers, about 3.3 million more than
Ethnic groups in Latin America and Yucatan) and an indigenous group, the Zapotecs. The same study found that Mexico's haplogroup was most similar to the European group with 81 percent of haplotypes shared, followed by the Asian haplogroup with 74 percent and the African haplogroup with 64 percent. The investigators also noted that the African admixture did not generally come from African slaves brought by Europeans to the Americas, but rather, it was already a part of the genetic admixture of the Iberian colonists. A study in Mexico City found that its mestizo population had the greatest variation in Latin America, with its mestizos being