Originally Posted by
javabytes
Upgrading with miles from a T fare will run 30k each way, based on what we know of the hidden award charts.
I would take $269 FCM over 30k mileage upgrade easily as I value SM at more than $0.01. FCM will also allow more RDM and MQM to be earned.
I would still call and see the difference between the online FCM offer and the fare difference to upgrade, and then choose the better option.