The aim of this text was to analyse and reflect on the phenomenon of cross-border commuting. The subjects researched were street workers known as ambulantes, more specifically those who sell products such as fruit, yerba mate and gum candies at traffic lights and at specific points in the city, such as busy avenues and streets. These informal workers travel every day from the Paraguayan municipalities of Ciudad del Este and Puerto Presidente Franco to the streets of Foz do Iguaçu/BR to sell their goods. At the end of the day they return to their country of origin, thus configuring cross-border commuting. Ethnographic research was used to verify this phenomenon, using a semi-structured questionnaire.