Originally Posted by
sbm12
It avoids this problem but creates another one - cost. The reason that people book trips like this is that they are much less expensive in many cases. If it were the same price to just book the one-ways then booking "normal" r/t flights would also be reasonably priced and there would be no need to do it this way.
Not quite...
What about mileage runs? Sometimes you run into this situation when trying to "force" faraway connections. For example, one-way fares through Florida are cheaper and insert longer legs into a cross-country MR.