Originally Posted by
Kevlondon
I was going to ask exactly the same question - a forthcoming biz trip to NYC with a company that only pays for Y fares. Last time I went, I got a great deal in MMB to upgrade to WT+ for only £150 or so. I never thought of trying to go the next level and upgrade to J for just 10k miles. No reason I can imagine why it can't be done, the question is just how to do it. Calling exec club ahead of OLCI? Advice please!
I believe not. If you accept the pro-active upgrade in MMB you will be booked in to the "P" fare code which is normally used for WT+ redemptions but is also used for pro-active upgrade sale fares. You cannot MFU a fare in this bucket to J. But you may have more luck than me!