Hey! If you’re flying with KLM and passing through Basel, you’ll find their services at the EuroAirport Basel-Mulhouse-Freiburg. While KLM Airlines Basel Office has a dedicated office in Basel, their customer service is excellent. My family and I had a great experience dealing with their staff at the service desk in the airport. Everyone was friendly, helpful, and efficient in assisting with our needs. Whether you’re asking for travel info or handling booking changes, KLM’s team is always ready to assist with a smile. Overall, a smooth and pleasant experience!