I'm looking at the options for public transport in Rome, and there's the Integrated Weekly Ticket ('Carta Integrata Settimanale', CIS), which is valid for all buses, trams, metro and Trenitalia regional trains, costing 24 EUR. I'll be arriving at Fiumicino airport, and there's a Trenitalia train (line FR1) from there to Roma Trasteverre, which is perfect for me. The train alone costs 9.50 EUR, so I'd be able to save quite a bit if I'm able to use this type of ticket.
On the abomination of a website which belongs to ATAC, the public transport agency responsible for mass transit in Rome, it is impossible to find whether those tickets can be bought from Fiumicino airport at all, and if they are valid for this particular train.
So, in short:
- Is the weekly CIS ticket valid for use on the FR1 line?
- If yes, can I buy it from the airport?