High speed train from Paris to Rome

Whether it is worth it for the view is a question only you can answer. But it would be a really long trip by train so if you do it by train I suggest you make a stop somewhere. There are direct TGVs from Paris to Milan. They take about 6 hours, so flying is faster but it is a trip where the views are worth the extra travel time it in my opinon. But all the way to Rome? That would be a full day of train travel.

From Rome to the Amalfi coast, start by taking the train to Salerno, and from there a bus or ferry.

From Milan there are High speed trains direct to Naples and the journey takes 4:30 / 5:00 hours. There is a train each hour, more or less, so you can easily manage a connection to Paris-Milan trains.
The Paris - Milan train runs twice a day and is 7 hours the journey.
From Naples there are local trains to Sorrento.
Does it worth instead of the flight Paris - Naples? I have no idea: it depends to you.

or a train to Naples and the commuter train to Sorrento and a bus.

At the moment, this site -- https://www.bahn.com/en/view/index.shtml -- shows the best train travel is 11+hrs and requires at least one ( and as many as 6) train changes, for Paris to Rome. For me 2 hr flight is the choice. What is showing now and what may be available in Sept., could be markedly different, depending on the covid situation.

For Rome to Amalfi, most folks will choose to train from Rome to either Naples or Salerno and then, depending on where on the Amalfi coast they are going will choose to hire a car service, take a ferry or take a bus. ( or some combination of these)

There’s no high-speed train from Paris to Rome.

If you would like an idea of the scenery on the train between Paris and Milan, You will find photos here:

https://www.seat61.com/trains-and-routes/paris-to-milan-by-train.htm#Route_map

Unlike the trains that pass under the Alps in Switzerland using long tunnels, this train has a fairly short tunnel of 13.6 km, as mentioned in the article.

I'd fly for that trip as to not waste a day of travel. But, I'd also do those towns in 2 separate trips as Florence, Rome, Sorrento, Amalfi need 2 weeks to see. I'd book nothing now that doesn't give you a full refund, because I don't think travel to Europe will happen this year - they haven't even begun vaccinating and most recent travel sites, magazines, AAA think it's unlikely.

We took a train from Rome to Sorrento and based out of Sorrento for Amalfi. You can SEARCH for this in the search bar as it's brought up very often. We love Italy and try to go for 3 weeks every couple of years.

Lindy, we based our Amalfi coast visit by staying in Sorrento, which is, technically a bit west, but with convenient access to Amalfi. It was also great for the ferry to Capri, and access to the ruins at Pompeii, plus the archaeological museum and classic pizza in Naples. This was in late December/early January, so I won’t attempt to give you weather or crowds details. But going home, we returned from Sorrento to Rome, opposite the direction you mention, so if you reverse what was mentioned above, take the train from Rome to Naples, about an hour, then take the “Circumvesuviana” commuter train to Sorrento. After arriving from Rome, you’ll have to traverse the Naples train station, a bit of a walk, to get to the lower level platform for the Circumvesuviana.

Circumvesuviana is the way to get to/from Naples, Pompeii, and Sorrento. The train got packed as we neared Naples, so if you were going the opposite direction (south), I’d expect to have a lot of fellow passengers departing Naples, then the train would thin out the closer you got to Sorrento. Also, on the faster train between Naples and Rome, we got off at the stop for Ostia Antica, the site for the well-preserved ruins of ancient Rome’s seaport, which was a 2-3 minute walk from the train platform, with our luggage. If you were interested in seeing that fascinating sight (mosaics, ancient buildings), you could get there by taxi, see the ruins, then hop the train bound for Naples, then the one towards Amalfi.

Before/after Covid:

1. There is no direct high speed train from Paris to Rome. But You can take a TGV from Paris Gare de Lyon station to Turin's Porta Susa Station; then you have two options: you can take either a Trenitalia.com or an Italotreno.it direct high speed train from Turin Porta Susa to Rome, Naples or Salerno.
2. The first replies you got are wrong (sorry guys). Forget about getting off the French TGV in Milan, french trains call at Milan Porta Garibaldi, but Italian trains to southern Italy depart from Milan Central. You'd be forced to take the metro to transfer between 2 stations... with all your luggage in tow!
3. No scenery can make such a long journey worth, but trains run from city center to city center and you are not supposed to arrive at the train station 2 hours before the departure time.
4. In September my favorite way of travelling from anywhere to the Amalfi Coast would be a train to Salerno followed by a ferry to the village of your choice.

Lindy, is it your intention to spend time in Rome, or just transferring to the Amalfi coast? Where is your flight home departing from?

From Paris Orly, (24 min. to an hour from central Paris) a flight to Naples is around 2:15. Add an additional 1:30 for airport arrival and in under 4 1/2 hours you could be in Naples.
This sure beats a multi stop, lengthy train ride and would be much less $$.

Look at Easyjet and Transavia for flights. Flights are also available from CDG but it will take longer to get there. Air France has several flights daily.

Hope this is of some help.

From Naples, you could take the Alibus to Napoli Centrale, train to Salerno then ferry to your village of choice.

Another option would be the Amalfi shuttle from the airport directly to the coast.

I'm getting some wonderful suggestions on Rick's Travel Forum. Thank you all for your many suggestions and experiences. Gerri, we would stay in Rome for 3-5 nights and then would be off to Amalfi. We are just in the beginning stages of "Will we go to Andalusia from Paris? Berlin? Italy? (Other suggestions are welcome). So much of it is dependent on herd immunity and countries behaving themselves. I am trying to get a "lay of the land" now. I always have to either begin or end, sometimes both, in Paris!

Right now, there are no highspeed trains showing up on the schedule after March 31. I assume they are keeping the schedule window short due to the pandemic. Also there will be a general schedule reshuffle around June 6 or 13.

As Dario pointed out, the fastest way would be the 6:47 TGV from Paris Gare de Lyon to Torino Porta Susa, then change to a Freccia train to Rome. Total travel time about 11 hours with a 45 minute change time in Torino.

If you choose to fly, just fly Paris to Rome and be done with it. Breaking it up with a plane and train makes no sense. Its the worst of both worlds.