Go to the My Trips section of the Orbitz website. Because Orbitz is primarily an online way to purchase trips, this is the easiest way to access your information. On this page, you will see information about rules and regulations for your trip. Click on this link to view information on fees and policies for changing the trip. This information will vary, depending on the reservations you have booked.
Click the Cancel/Change Trip link on this page. The wizard on this page will help guide you through the process of changing the trip.
Pay the fees or fare changes for altering the trip. This can be done online with your credit card.
Call Orbitz customer service if you have problems with this process. A representative will be able to walk you through the change in your trip.