Hi all.

We are only in August, but I'd like to get about 20,000 miles more on my UA account to become Gold. This should probably be on UA metal.

Any suggestions on good flights ex-RIO ? I suppose I could mix UA with other *A carries such as CM or AC, but some of it should be UA.

I am looking for the best cost / miles ratio, obviously. I like to fly Business if that doesn't damage the ratio too much.

Suggestions welcome