Ah, yes. I actually have.

So to simply,

I have 170K AA miles.
I have 251K United miles (combining from UR).


United...
65K RT Saver Econ Award.
120 RT Biz Saver Award.
140 RT FC Saver Award.

AA
75K RT Econ Award / 37.5 1 way
125K RT Biz Award / 62.5 1 way
145K RT FC Award / 72.5 1 way


on AA, I have enough for 4 x 1 way on Econ
on United I have enough for 1 FC RT, 1 Biz RT or 3.5 Econ RT.


I should be able to get another 65K miles in next 12 months. Or worse case, I'll need to purchase 1 RT econ myself.


One of my main concern is how easily can I book 2 economy ticket with Cathy or SQ?


Thanks for the info on extending mileage expiration date. That helped!