Originally Posted by AviationFreak
I have usually had no problems redeeming my miles for awards. But this lately is with most airlines, it is getting harder and harder to redeem awards.
Lufthansa has to be one of the worst. Miles expire frequently, and we switched to UA because our miles wouldn't expire (well, sort of). Also, you are getting less and less miles depending on booking class. only like 250 for intra-Euro flights in eco!
We are now loyal to UA and CO (depending where we fly). Mainly we fly CO out of CRP, we only use UA to go to Germany (sometimes). I like CO because miles never expire, 500 mile minnimum, easy to collect miles!
You will need miles that don't expire on CO

Very difficult to redeem to put it politely.
See the CO forum for further details