We were Talking with a travel agent last week-- We said our plan in getting to South Africa was to use air miles to buy Business class seats on SA Airlines from Atlanta to Johannesberg at 120,000 miles each- they are a Delta partner.
She said most "foreign" airlines would not let you do that - they would let u get one seat with miles but make you buy the other one.

Any truth to this - was she just trying to get us to buy the tickets?

anyone used air miles like this?