I just pulled up one of my itineraries on virtuallythere, and as the previous poster said, it gives you the class of service.
Class: Economy
If you are looking for the fare basis, you will see that on the eTicket receipt, to which there is a link on the top left of the page of the viewed itinerary. Keep in mind that the eTicket receipt will only come up if the tickets have been paid for. So if you are using a corporate travel agancy, they might not pay for the tickets until a few days before you depart.