Originally Posted by
Lanzz
I'd get to LHR in J on an SWU, and then use cash to upgrade to premium economy on BA from Y. I've done this many times to India, and it works well. The premium economy upgrade is about $350 most of the time. Sometimes, you can upgrade to Business on BA for about $1,100 - I've done both. BA long haul Business is not that good, so if premium economy is available, I would do that in a heartbeat. You do this at the customer service center in the food court in Terminal 5.
There is no fare class restriction to upgrade from Y to PE or J? Any other info on logistics / getting the upgrade? And does paying for for this upgrade get more EQP?