Train from Paris to Venice

A train trip taking in all three cities would really be a slog. From Google Maps, it appears that your travel times are 7 to 8 hours between each city, for around 15 hours of rocking back and forth on a train. I have made the Paris to Salzburg leg, but only at night, and it was tedious. The Salzburg to Venice route was scenic, yes, but very slow. Not impossible, but this epic rail trip may lose its allure after a few miles.

Do you have too much time on the trip - more than you can fill with destinations? Then sure, take a train. But if you are like most travelers - you have way too little time, too many places you want to see, more things to do than you can - then it probably makes more sense to simply fly. Unless, unlike most of us, you have days to burn, in which case a string of long, indirect, and (at times) scenic train trips could work. But be aware that you're trading away several days that you could otherwise spend on the stuff you (presumably) go to Europe for in the first place. If it were me, I'd fly.

Take a plane. I'm only good for about 3-4 hours on a train and I'm done.

Put me in a cabin with a bunch of soccer players, and I'm ready to get off immediately.

Paris to Venice by train from DB search

• One connection at Torino, 10 hrs, about 2 of those hrs near the French Alps
• One connection at Lausanne, 10.5 hr plus overnight stay, about 2.5 of those hrs near Lake Geneva and Swiss Alps. Afternoon departures from Lausanne include one or more extra connections; only the 8:18 a.m. departure is direct to Venice.
• Paris-Salzburg 7-9 hrs with 1 or more connections, plus overnight stay, plus Salzburg-Venice 6 hours with a connection at Villach. There is nice mountain scenery and maybe more of it but a much longer trip.
• Direct overnight train, 14.5 hrs, no mountain scenery while awake

Direct flights are usually cheapest and maximize your time in Paris and Venice.

Last year I trained from Venice to Paris. (I had been to both before.) Yes, I considered going the northern route, but I wanted to check out the South of France (had never been) and return to the Italian Riviera, which I love. Then I visited the French Riviera (Nice) and Provence as I headed north. I love train travel, so it was not a burden - it was part of the fun. I took about two weeks for my journey.
The European trains are mostly really nice.

This site might help you plan a trip via Salzburg or Lausanne:

https://www.seat61.com/international-trains/trains-from-Paris.htm#Paris-Italy

However, I probably wouldn't do it with quick stops of just a night in each city before moving on. I'd slow it down and add a few nights in each city if you can. If not, I too might be tempted to fly.

I'm trying to picture 3 teenagers who would be eager to spend 2 long days sitting in trains and staring out a window. Sorry, my imagination can't stretch that far. Save yourself the whining and grumbling and just fly to Venice. Or if you really HAVE to see mountains, fly to Munich and train to Salzburg so you might have a little time to actually see the city. Then train to Venice the next day.

Hi Lindah,
You might want to nail down your exact itinerary before asking more questions.
You have made multiple postings about getting from Paris to Venice - each one has a different route and many people have given you advice for each one. You have also asked about transport in Paris multiple times and are now asking for people to tell you exactly how to get to and from about 15 different locations in the city. Using the resources you have been given over several posts you should now be able to figure this out.
It's time to get a guidebook and/or start using the many webpages you have been given to make your specific plans before asking additional questions.
Good luck with planning your trip!