Go to the Euro Railways Web site (see Resources). Enter "Berlin" and "Paris" from the "Tickets and Schedules" section under the blue menu bar. Select the option for "Berlin/Paris" on the next page. Do not select "Berlin/Disney."
Plan to get some sleep. Because of the long duration, the train is usually a night train. Sleeper cars and couchettes are options during this trip. Choose from one of these or select a second-class passenger seat. Note that discounted fares are available for passengers holding Eurail passes.
Select your departure month, day and time from the drop-down menu. Enter the total number of tickets you need to book. If you need to book additional tickets that are not of the same category, you will have to add these to your cart later.
Continue on to the next page. At this point, you can go back and add more ticket options by selecting the "Continue Shopping" option.
Select your shipping preferences once you're finished shipping. Expedited shipping options are available at an additional cost. Shipping is usually 3 to 4 days from the date of purchase via FedEx. Promotional codes should also be entered at this time.
Register an account to continue booking your ticket. Input your email address and all other obligatory personal information. Enter your credit card number, billing address to finalize your ticket purchase. Print your confirmation email or the confirmation page.