Originally Posted by
dici
You can upgrade to J class directly by paying the fare difference, and I believe you still need to pay for the change fee
Depends on each ticket’s T&C. There is no blanket ruling. I have seen some with zero change fee if you reissue to J but others do attract a change penalty even if it means giving MH more revenue with the reissuance to J. The latter are usually the promo fares sold out of KUL.