Based on an administrative census of the 267,116 migrants registered for the 2017 presidential elections and a survey applied to 4771 migrants, we conclude that (1) the electoral participation of migrants shows a significant gender gap, with women participating in a higher proportion; (2) migrants who registered earlier in the electoral registers, are more likely to vote compared to the rest; (3) when migrants come from countries that implement compulsory voting, they increase their likelihood of voting in the receiving country; (4) the declaration of wanting to remain in Chile and not return to their countries of origin or migrate to another country increases the probability of voting, and the same happens with married migrants, with Chilean children, with a Chilean partner, and with a better economic situation; (5) social capital has a positive influence on electoral participation.