Through May 31, both Delta and Northwest are offering a 100% bonus for mileage transfers between accounts. This works out to a little bit over a cent per mile, which is quite reasonable. 30,000 Delta miles, for example, will cost you $330, while 30,000 Northwest miles will cost you $325. While I consider this a good deal, I probably won’t be making a transfer this time around, since we’ll probably see just as good (or maybe even better) of an offer in the future.
(Tip of the hat to View from the Wing)