From Fiumicino airport: the easiest and cheapest way (8euros) is by Fiumicino local train FR1 (Fiumicino stopping train), stop at Roma Tuscolana station, It takes 39 mins. Then 1min walking- by the Leonardo Express train (14euros) to Termini station and then by metro line A, stop at Pontelungo or Re di Roma.

From Termini train station: by metro line A, stop at Pontelungo or Re di Roma. Professional pick-up service: If you tell me a bit in advance I can book for you a private pick-up with the driver that will wait for you at the exit of the gate.