According to forum posts, Madrid has several train stations facilitating travel within and outside the city. The primary station for long-distance and high-speed trains is Madrid-Puerta de Atocha. For local travels, Madrid-Atocha Cercanías serves as a hub connecting to other parts of the city.

Travelers have mentioned the Cercanías, Madrid's suburban train service, which connects various parts of the city including the airport. Notably, Terminal 4 of Madrid-Barajas Airport is directly linked to Atocha station via the Cercanías, providing an easy transfer to the city's main train station.

The AVE (high-speed train) and AVANT are among the train types mentioned that operate from Atocha, offering quick transit options to other Spanish cities and within Madrid. For instance, AVE trains connect Madrid to distant cities like Granada, while AVANT trains are used for shorter routes such as Madrid to Toledo.

Besides Renfe, travelers have discussed other high-speed rail operators like Iryo and Ouigo, providing alternative services and potentially different pricing options for routes from Madrid to other major cities like Barcelona and Seville.

Some travelers have mentioned a flat taxi rate of €30 within the M30 ring road in Madrid to the airport. However, there have been instances where additional charges were applied for waiting time if the taxi was called and the passengers were not ready immediately upon its arrival.

According to forum posts, besides taxis, there are other transportation options available such as Uber and public buses. The Aeropuerto Exprés bus is also an alternative, and the Cercanías commuter train connects Madrid's Atocha station directly to the airport, offering a practical choice for those traveling from the city center.

Travelers have pointed out that the taxi journey from downtown Madrid to the airport takes approximately 30 minutes, suggesting it as a reliable option for timely airport transfers.