Transportation from finding airport Rome to Civitavechio cruise port

Do you mean "landing at FCO"?

It is unwise to fly in on the same day a cruise leaves, because there are so many risks involved, including labor strikes, weather delays and cancellations, and even (past real event) volcano eruptions in Iceland! If I were doing this, I would take a taxi, because:

The low-cost option, Airport Express South to Rome Termini Station, Local train 1h 10m to Civitavecchia train station, WALK hot, cobblestone walk 3/4 mile to the port shuttle bus circle, is backtracking and probably 2.5 hours.

https://community.ricksteves.com/travel-forum/italy/rome-airport-to-port-outside-of-rome

https://community.ricksteves.com/travel-forum/russia/termini-station-to-civitavecchia-cruise-ship

It would be expensive but you might consider the option for the ship's shuttle to the port. Makes life easy. If you look on a map you will the see the airport is the south and little west of Rome and Civit is west and north of Rome. There is no direct public transit between the airport and Civit.. A taxi is probably 150euro. It is easy to use public transit. It just takes time.

Take the Leonard Express into Termini - about 35 minutes and switch to a train from Rome to Civit .... Roughly an hour or so depending on type of train. At the train station in Civit, you will be able to see your ship. It is about 3/4 of mile to the port entrance. From there a ship shuttle will take you to you ship's check-in center. There is a shuttle bus that will take you from the station to the port entrance but it will be packed and it many take longer to get on the bus than to walk. At the airport train station you can buy your ticket to Civit... in addition to the LE. BE ABSOLUTE sure to determine which tickets need to be validated (time stamp) For sure the LE and maybe a regional ticket to Civit... It is easy to do. We have done it maybe six times.

Thanks Tim & Frank for your advice. We’ll probably pay the extra and book a cruise transfer from the airport to the ship ( after reading your messages) and take it easy at disembarkation. Get the train into Rome, park our luggage at Termini for the day, stroll around Rome & take a shuttle for a late flight.

Agree with Tim about the risks involved in flying in the day the cruise departs. Too many variables to prevent Murphee's Law. Strongly suggest, if at all possible, you fly in at least one day (two would be better) before the cruise departs to be sure you don't literally misss the boat.

In addition to the above mentioned comments, I recommend arrival a couple days in advance to recover from jet lag and rest up for your cruise/tour.

We used Welcome Pickups from the airport to the port last year. Worked great