The 2023-2024 blueberry export season in South America highlighted the contrasting experiences of Argentina and Chile amidst climatic and market challenges. Argentina capitalized on reduced competition from Peru due to inclement weather, exporting 15,000 tons at high prices, focusing on quality and social responsibility. Meanwhile, Chile navigated El Niño and quality issues from heat waves and rain, ending the season with over 86,000 tons, slightly down from the previous year but managing to exceed initial projections. The United States emerged as the primary market for Chilean blueberries, with a notable 190% increase in air shipments to address U.S. supply shortages. Both countries demonstrated the importance of adapting to market demands and environmental challenges to maintain their positions in the global blueberry market.