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For travellers leaving or arriving at the KLM Airlines Madrid Barajas Airport Terminal, Terminal 4 guarantees a smooth journey. The terminal offers cutting-edge amenities, roomy check-in counters, and self-service kiosks that streamline the check-in procedure.KLM passengers can take advantage of a variety of facilities in Terminal 4, including duty-free shops, dining options, lounges, and Wi-Fi. The terminal's cutting-edge style and enough lounging areas give visitors a welcoming and pleasant environment.