Originally Posted by
scBD
I have booked two return tickets to GLA-JFK in December (for New Year) pretty good Y fares.
...
They then told me that this fare would never be upgradable as it is a "sale fare"
Is this correct?
From what I read on here sale fares are just as upgradable using MFU or did I get this wrong?
The fact that you bought these in a sale is not what prevents you from MFUing these tickets.
What is stopping you is that they're cheap economy tickets. These can never be MFUd. You can only MFU economy tickets bought in Y, B and H booking classes.
If you buy in WT+ and CW, however, you can usually MFU any cash ticket.