Originally Posted by
tkytky
This means that I have already input my ticket information into Vietnam Airlines website and the miles are in my account. Can I still transfer these miles into Korean Air's miles?
As above, you cannot transfer miles from 1 ffp to another ffp.
You enter your Vietnam Airlines freq flyer number into the Korean reservation. If an
eligible flight you will get miles in your VN freq flyer account for the KE flight
Some low prices (booking class) fares may not earn VN miles
You need to find out the fare booking class (not the economy business first cabin)
http://www.wheretocredit.com/korean-air