English proficiency is essential for students to face a rapidly changing world today. Teachers and students are rushing to find the most suitable way to enhance English proficiency. This study investigated students’ foreign exchange experience in their English learning. The KL-YES exchange program is one of the leading exchange programs in the world. For decades, it has brought thousands of students from various countries, including Indonesia, to the United States. In Indonesia, the Bina Antarbudaya, a partner of AFS International, organizes the program. This qualitative study focused on 10 alumni of Aceh's last five batches of the KL-YES program, their foreign exchange experience, and its impact on their English learning through the lens of Vygotsky’s Sociocultural Theory (SCT). I employed semi-structured interviews to collect the data. I also used thematic analysis to analyze the data. The research findings identified several challenges, strategies, and impacts of the foreign exchange experience on students’ English learning, such as improving their listening comprehension and oral proficiency through exposure to different accents and vocabularies in an English-speaking country. This study provides an option for language learners, language teachers, or stakeholders to explore exchange programs as a tool to enhance English learning.