How ANA Built A Single Source Of Truth With Snowflake And Apache Iceberg

All Nippon Airways (ANA), Japan’s largest airline, boosted performance by 62% by migrating from parquet external tables to Snowflake Managed Iceberg, establishing a Single Source of Truth. Using Snowflake Notebook, they built a custom ETL connector in three days at $10/month. They also utilize Cortex ML with a custom dbt Materialization, enabling everyone to perform ML operations. In this session from Summit 2025, Takashi Ioka and Yotaro Matsuura explain how Snowflake powers ANA’s “BlueLake,” which serves 40,000 users.