Originally Posted by
pgary
In my experience, U.S. Air miles are easier to use on Star Alliance international flights, but UAL miles are easier to get. I collect both whenever they are free or cheap.
Are there a lot of mile-earning opportunities for United? I'm targeted for CO card (50k) til the end of the month, but I've been wondering if it's worth the pull. I have a few (~18k) CO miles left over from when I was in grad school in Cleveland, but primarily fly US now since I live in Philly.
If I get the CO card, I'll have ~68k miles that will go over to UA, but not sure I'll be able to earn many more on UA.