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Adolfo Suárez Madrid-Barajas Airport has currently four terminals from which you can access easily and quickly by public transport to any place of the Madrid Region.
Moreover, the airport has a free bus service communicating the four terminals among them. The service is signposted as "Bus Tránsito" (Transit Bus).
You may consult the available public means of transport below:
Get your Tourist Public Transport Card in the devices located at T1 and T4. This card is valid for 1, 2, 3, 4, 5 or 7 calendar consecutive days, and allows you making an unlimited number of trips in every public transport mode in Madrid City (zone A) or throughout the Madrid Region (Zone T).