Originally Posted by
c1mth0g
I guess to be really specific, the international fares that I was referring to were: date change permitted for free, refunds permitted but with a fee
I've had numerous international B fares that gave that, although I'm not sure if they were corporate-specific fares or generally available fare classes.
In general unless you're getting a very good deal on B fares (ie, good corporate rates) you'd need to be expecting to make a fair number of changes to make up for the difference.