I know it should be easy (I linked my husband's accounts), but Delta has my name written wrong. They have it listed with my middle name as if it is part of my last name. And Northwest just has my first and last names. So when I have tried to link them, the system thinks it is two different people. I've sent in the documentation to Delta (over a month ago and again this week) to change my name on the delta account and I've called Delta CS, but no luck so far. So I can't link my accounts yet.