Madrid Barajas Airport (MAD)
After the Security Checkpoint, go down one level and proceed past the Duty Free Area towards McDonald's. Follow the signs for 'Sala VIP AENA' to the lounge entrance.
Open daily 5:00 AM-10:00 PM
LoungePair+ membership offers extra benefits for $99 USD per year, and with 4 stamps closer to Lounge Pass credit.