See main article: article and 2018 Copa LP Chile Hacienda Chicureo.
Tamaryn Hendler and Anastasia Pivovarova were the defending champions, but neither player chose to participate.
Quinn Gleason and Luisa Stefani won the tournament, defeating Bárbara Gatica and Rebeca Pereira 6–0, 4–6, [10–7] in the final.