Originally Posted by
ADLFO
Excellent comparison. One suggestion: Add information on the transferability of each of the SWUs.
I can do that, but I did cover indirectly. NW-DL don't permit the SWU to be used by someone else without the related PM being on the flight. They are not transferable. AA and UA SWUs can be sponsored by non-traveling sponsors. Accordingly, they are "transferable."
Safe Travels