Turkish Airlines has a Representation Office in Luxembourg, located around Route d'Arlon, Strassen which officially opened in late 2024, serving the business district and providing sales/support for the region. For direct contact, use their global Call Center at +1-866-829-1086, or their WhatsApp assistant for quick queries, as specific local office hours or direct numbers aren't listed, but their online Help Center is available for detailed info, notes.