The address for the NORTH Entrance  is via Portuense 1645-1647.
Estimated time from downtown (Piazza Venezia): 40 minutes.
Estimated time from Fiumicino Airport: 10 minutes.

From the GRA (Grande Raccordo Anulare) exit 30, Nuova Fiera Roma, Fiumicino direction.
From downtown, take the motorway Rome - Fiumicino and then follow the signs to the Nuova Fiera di Roma (North Entrance second exit).
There are outdoor parking for about 5000 cars.
Parking Rates: 1 hour € 2 / 2 hour € 2 / 3 hour € 1 / 4 hour € 1 / 5 hour € 1.
Daily rate € 7 (payment may be made only by cash).

Download the parking plan.

From Termini station the connection with Fiera Roma is simple and economical. Take underground LINE B and get off at PIRAMIDE (Ostiense station). Take the train line FR 1 towards Fiumicino and get off at the Fiera Roma stop (trains every 15 minutes).
Ticket € 1.
From Rome city: from Stations Tuscolana, Tiburtina, Ostiense connected to LINES A and B underground take line FR 1 for Fiumicino and get off at the Fiera di Roma. Ticket € 1.
The Fiera Roma stop is directly connected to the NORTH Entrance  by a covered walkway overpass.

Download the maps of the metro and railways.

From the Fiumicino Airport  railway station take the train line FR 1 to Fara Sabina - Orte (not the Leonardo Express direct line!) and get off at the Fiera Roma stop. Ticket € 5.50 (trains every 15 minutes).
The Fiera Roma stop is directly connected to the NORTH Entrance  by a covered walkway overpass.