From their fare page:
|AC fares - First class is cheaper than Economy|
Executive class is cheaper than tango Plus (economy).
I'm not complaining because I think its awesome that you can now buy a first class tix for less than an economy class tix but honestly, where is the motive for selling the remaining economy seats?
And sorry for the weird way of attaching the fare page but the AC has an expiration time on their booking site now so i don't want to attach the web url and have the page expire 10 min after I post.