Old Jun 13, 13, 2:16 pm
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Join Date: Feb 2000
Location: Los Angeles
Programs: UA Plat 2MM. DL Plat, AS MVP
Posts: 12,283
Originally Posted by burlax View Post
You won't be upgraded from X/I/O fare class. This simply will not happen.

Upgradeable fare classes are listed in the M&M T&C.

Also, LH doesn't open upgrade availability until very close to depature, so using other airline miles is problematic since you cannot get on the upgrade waitlist.

Also, you'd need a Y/B/C/D fare class to use other carriers' miles. If you want to upgrade a discount fare, you'll need to use M&M miles.
This is all true for prearranged upgrades. But if there is an oversell, anything can happen. Status helps. Though a mileage ticket is pretty low down the ladder!
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