Originally Posted by Matt4

Unfortunately, there's not such a possibility to use double Qcredit/Qmiles when only flexi awards are available on the route you want to upgrade.
And the worst is as NoY can only see award availability on his second leg means he might not be able to upgrade it because of what seems to be complex married segments rules with upgrades...
Good luck to you NoY and don't hesitate to put your upgrade request on the waiting list or in last chance, try an airport upgrade using Qmiles or Qcredits.