Join Date: Jan 2010
Location: HSV
Programs: Hy Glob,Choice Dia, MR TIT,IHG SPR,HH Dia, Wyn Dia, UA Sil, WN Alis, Hert 5*, National EE
Posts: 1,198
In my experience:
-Delta will but you pay a $150 change fee (so if price drops 150 or less its useless)
-Southwest has free cancellations so they do if you cancel and rebook
-Airtran issues you a credit if the price drops. (I did this once over the phone and it took maybe 5 minutes for $80 back)