Which train to take from Prague to Vienna?

Buy either at cd.cz or regiojet.com (two different companies). At CD get also a seat reservation, at Regiojet the seat is assigned automatically.

The train leaves from Praha hlavni nadrazi (use google maps).

Thank you so much for your response. I am on it. 👍🏼

Jowe, read this webpage, it should answer all your questions: https://www.seat61.com/trains-and-routes/prague-to-vienna-by-train.htm

Vienna to Budapest here: https://www.seat61.com/trains-and-routes/vienna-to-budapest-by-train.htm

"from Prague to Vietnam" - yes, that is also possible by rail, though it will take considerably longer.
Edit: I see you've corrected it now!

Thank you all.... I am going crazy because I really don’t know what I am doing.... thank you, I am looking into all the information.... bless you all for helping a stranger in need.... ❤️

We stayed at a lovely, family hotel that was easy to get to from the Vienna Train station. I had two girls with me too. It had one of the best breakfasts I've had while at European Hotels. It is called Pension Kraml -http://pensionkraml.at/EN/index.html.

Can someone please advise whether it's better to wait until we're in Prague to purchase our train tickets or should we buy in advance? Also planning to travel the same route in June.

napschwartz, It is a lot cheaper to buy tickets in advance online. Tickets are for a specific train, you need to decide when you want to travel before buying your tickets, and can't change your mind later without paying more.

See the website I listed above: https://www.seat61.com/trains-and-routes/prague-to-vienna-by-train.htm

I took the Railjet train from Brno to Vienna. It was a good ride. Not refundable.

I also took the Regiojet bus (not train) from Krakow to Brno. It was also very good. My ticket was refundable up to 15 min before departure. Check if the T&Cs are the same for train rides.

So, I don't think you can go wrong with either operator. Choose based on time.

Railjet is not a train operator. Railjet is a type of train. OeBB operates the Railjet trains.

Thsnk you everyone, with your help I was able to purchase my tickets... could not have done it without your help. Thank you!!!

Emily is right. Railjet is a type of train operated by OeBB (Austrian Railroads) and CD (Czech Railroads). The red train is Austrian railjet, the blue one is Czech. I would recommend to compare prices with CD. Those are usually the cheapest.

I would highly recommend getting seat reservations for your train trip. When we traveled from Vienna to Prague, a large portion of the trip was standing room only.