The Madrid-Barajas Airport (MAD) is connected to the city centre via Metro Line 8 (the Pink Line). There are two stations at the airport: "Aeropuerto T1-T2-T3" and "Aeropuerto T4." The line runs directly to the Nuevos Ministerios station in the heart of the city, where you can transfer to Line 10 (Blue) or Line 6 (Grey) to reach other central areas like Sol or Plaza de España. The journey from the airport to Nuevos Ministerios takes about 15 to 20 minutes. Be aware that you will need to pay a special "Airport Supplement" fee (usually around €3) in addition to the standard metro fare. While the metro is efficient, it does not run 24/7 (closing around 1:30 AM); for late-night arrivals, the Exprés Aeropuerto (Airport Express) bus is a better option, as it runs 24 hours a day to Plaza de Cibeles and Atocha station for a flat fee of €5.