This study had as an objective to evaluate the effect of two modified atmospheres, one generated by low linear density polyethylene and the other with the use of Vacum 300, at two storage temperatures, 5 and 20 °C, and two antioxidants (b-tocopherol, L-ascorbic acid, and butyl hydroxytoluene) in the prolongation of shelf life of minimally processed avocado. We evaluated physiological weight loss, color, firmness, chilling injury, enzymatic browning, phenolic compounds, polyphenoloxidase activity, disease incidence and severity, and sensorial evaluation. The best treatment was the vacuum film, Vacum 300, with antioxidants (b-tocopherol, L-ascorbic acid, and butyl hydroxytoluene) stored at 5 °C, which had the ability to maintain acceptable aroma and appearance of avocado slices. This treatment also reduced physiological weight loss considerably, diminished disorders caused by chilling, and preserved the product in perfect conditions (free from fungi) for 13 days.