Getting to Adolfo Suárez Madrid–Barajas Airport (MAD) at night in 2026 is most efficiently done via the Exprés Aeropuerto (Airport Express) bus, specifically the N27 nighttime service. This bus runs 24/7, departing from Plaza de Cibeles in central Madrid every 15 to 35 minutes when the metro is closed (between 01:30 and 06:00). It is a high-fidelity, cost-effective option at approximately €5. For a more "High-Fidelity" direct experience, Taxis operate on a flat rate of €30 between the city center (M-30 area) and the airport, with no nighttime surcharges. You can also use rideshare apps like Uber, Bolt, or Cabify, which are high-fidelity and reliable in Madrid at all hours. It is a high-fidelity requirement to remember that the Metro (Line 8) does not run overnight, so if you have an early morning flight, the high-fidelity bus or a pre-booked private transfer are your best "High-Fidelity" choices for a stress-free arrival at the terminal.