So i have roughly 150k miles sitting in my SBI-AI CC account. And i have another 60k points in my Citi PM account (translating to ~30k miles). I have a biz trip coming up to US west coast (LAX) in Jan end which i am clubbing with a holiday in which my wife would join me later. My company pays only for Economy class fare.

So i was thinking of two options -

1. Buy a revenue Economy class fare for my wife and use miles to upgrade the return leg for both of us to Biz
2. Use the miles to buy my wife's economy class ticket

Complicating matters is the fact that only *A flying to LAX from India i could find are SQ/Lufthansa/TK. What should be my modus operandi for this ?