We've used Orbitz for many of our international flights until 2013. Never had major problems with our tickets except for seat selections. What we thought were confirmed seat selections made online with Orbitz.com for our family of 4 traveling together were not at all confirmed with the airlines. We've started using Travelocity.com since and have been more satisfied. They may be a little more expensive and does not always offer seat selections but at least it is not false advertising.