As record numbers of people cross into the United States, the southern border is not the only place where the migration crisis is playing out.

Nearly three thousand miles to the south, inside Colombia’s main international airport, hundreds of African migrants have been pouring in every day, paying traffickers roughly $10,000 for flight packages they hope will help them reach the United States.

The surge of African migrants in the Bogotá airport, which began last year, is a vivid example of the impact of one of the largest global movements of people in decades and how it is shifting migration patterns.

With some African countries confronting economic crisis and political upheaval, and Europe cracking down on immigration, many more Africans are making the far longer journey to the U.S.

The migrants in Bogotá come mainly from West African countries such as Guinea, Mauritania, Senegal and Sierra Leone, though some are from as far east as Somalia.