Fiumicino has a large range of parking options and designated indoor smoking areas, though pricing for parking is dynamic rather than fixed, and booking ahead can make a real difference to what you pay.
Parking options
Options include Long Stay lots (both uncovered and covered, with a free shuttle), a near-terminal uncovered lot, multi-storey parking in Buildings A–D closest to the terminals, a premium Executive covered option, EV charging bays, and short-stay paid lots at both terminals. Aeroporti di Roma prices parking through a dynamic 'easyParking' calculator rather than a fixed daily rate, so check current prices online before you go rather than assuming a flat rate.
Booking parking in advance
Long Stay parking booked online well ahead of your travel date — Aeroporti di Roma has advertised rates from around €5 per day for bookings made roughly a month in advance for week-long stays — is consistently cheaper than paying at the barrier on arrival. The closer multi-storey Buildings A–D cost more but save walking time and shuttle waits if you're parking for a short trip rather than a long one.
Smoking areas
Fiumicino designates specific indoor smoking areas across both terminals rather than allowing smoking throughout — look for the signed smoking lounges rather than assuming you can smoke at your gate.
Where smoking areas are located
Signed smoking rooms are distributed airside in both Terminal 1 and Terminal 3, generally positioned along the main circulation routes rather than at every individual gate — if you can't spot one nearby, ask at an information desk rather than assuming there isn't one in your boarding area.