Korea (South) Internet Packages & Data Plan of 2021 by kt olleh (by KT – Korea Telecom) Data Packages 100 MB: ₩ 5,500 300 MB: ₩ 8,800 500 MB: ₩ 11,000 1 GB: ₩ 16,500 2 GB: ₩ 22,500 4 GB: ₩ 38,500