Hi everyone. I'm looking at booking BNE-FCO (or anywhere in Europe) at the end of November, but am having troubles putting a stopover in. I'd like to stopover in SE Asia (pref KUL or SIN) on the way back in early January, but it seems to take the price from AU$1379 to over $2500 or even $21000! Is that right? I haven't noticed big jumps like that for stopovers on other airlines.

Cheers in advance for any hints!