Join Date: Jul 2001
Location: Citizen of Canada, Member of the World!
Programs: AA, AB, AC, AD, AE, AF, AG... you get the picture
Posts: 2,091
expedia will attempt to select lowest eligible fare so, technically, it doesn't ticket fares flexibly. You can look at prices for different fare basis, but you can't force it to select an intermediate higher fare.
The easiest thing to do is find a travel agent with access to a rez system.