Located in the province of Lleida (Catalonia, Spain), this study aims to identify and analyze the predictors of linguistic acculturation preferences of autochthonous high-school students toward their peers of Latin American descent. Autochthonous high-school students (N = 349) filled a questionnaire measuring linguistic acculturation and a series of linguistic and social-psychological variables (i.e. multicultural ideology, ethnic tolerance, attitudes toward minority languages, identification with Catalan culture and identification with Spanish culture). A k-means cluster analysis identified that autochthonous students endorse two linguistic acculturation preferences toward their Latin American peers: assimilation and multilingual preferences. Meanwhile, a logistic regression model found that participants with higher scores on attitudes toward minority languages have more likelihood to endorse a multilingual preference. The results highlight the importance and need to further work for a genuine intercultural educational model that allows the integration of Latin American students as well as of other minority groups. Particularly, this study found the importance of boosting the use of minority languages through educational approaches such as translanguaging and language architecture.