The airport is linked to the city center by train in 2009. The trainride take about half an hour. But at the airport train depart and arrive near Terminal 1. (the old terminal, which was renovated to accomadate the low cost airlines).

In 2009 there is no railway near the new Terminal 2 which is at the other side of the runway from Terminal 1. The only way to get to the railway station from terminal 1 is first take a regular busservice, linking the two terminals. This bus service also goes from the airport to the Budapest metro. Many people take this bus to reach the metro, instead of going to terminal 1 and then walking to the trainstation.

Taking the railway in Hungary is very cheap in 2009. The trainride will cost less than 1 euro. But when you take the train in the city center, you will probably best ask a local at which trainstation you need to get off for the airport, as there probably no announcements on the train. And often you get the wrong advice.

Taking the bus and metro might be a better option for foreigners.