Have an idea of sites you want to visit and things you want to do during your trip. Do some research on travel blogs and communities. You should ask friends and family who have traveled before about places they enjoyed the most. Read through site-specific guide books like Lonely Planet, Let's Go, Rough Guide, Rick Steves, or Frommers. You might be interested in the following sites:
Book all travel far in advance. However, do not book anything until after the first week of classes. You may find there are NYU-sponsored trips already in place.
"I traveled to Croatia and Bosnia and visited Vienna on myway back to Prague. I highly recommend both Sarajevo and Dubrovnik, although Croatia and Bosnia may seem out of your comfort zone (they were certainly out of mine) Dubrovnik is beautiful and Sarajevo was the most diverse, vibrant, energetic and welcoming places I visited! Just go!!"
-Nora, NYU Prague student
If you are planning weekend travel, then flying from city to city may be your cheapest option. With flights, the earlier you book, the cheaper it will be. Be aware that the taxes for the flight may be more money than the cost of the actual flight. Many of the cheapest flights leave very early in the morning from airports outside of the city.
In some places it can be difficult and expensive to travel to these airports at these very early times because public transportation may not run all night. If you go on a low-fare airline, expect to pay a fee for any stowed luggage you bring.
There is a great Airport Express bus that runs straight from the Nadrazi Holesovice metro station to the Ruzyne Airport. It only costs 40 Kc each way (roughly $2), and it’s a lot faster than taking the combos of metro and bus system routes.
It is easy to travel by train from Prague. You can buy tickets just a few days in advance at the train station in the Hlavni Nadrazi metro stop on the red line.
Railpass lists all of your train options and information about the trains for all the different European countries.
If you are planning on traveling (especially after your semester) you may find that Eurail is the best option. It is a train pass that gives you train travel within 18 European Countries. Not only is it a cheap, convenient way to travel around Europe, but also many Euro trains are super comfy! Buy your tickets in the US as they are more expensive in Europe.
The students mainly used buses for travel within the Czech Republic. It is easy to buy bus tickets at the Florenc station, which is off of the red and yellow metro lines.
For travel within the Czech Republic and throughout Europe, you may be interested in purchasing a ticket through Eurolines.
Busabout is designed for back-packers which makes it a great way to meet people, and a cheap way to get around—it may be more appropriate if you plan to do more traveling during the summer.