Originally Posted by flyr16

I did such a transfer, AMEX MR to Krisflyer a few weeks ago. AMEX said it could take ten business days, or so. It ended up taking much less, maybe about 4 - 5 days, max.

For the flights I booked, the number of miles required, including the 15% online booking discount, was less than for other airlines and in view of SQs service, a no brainer. And, dealing with Krisflyer's mileage redemptions folks was night and day from dealing with those of some US carriers.