If I understand it correctly, Delta has an alliance with Continental, Northwest, and United Airlines, which means I can book air with any of these 4 airlines and receive Skymiles with Delta? Right?
What I don't understand, is exactly how I do that. How do I get a Continental, NW or UA flight to credit miles to my Delta Skymiles account?
For instance, when I access Continental's website, they ask for my onepass # (which I have), but how do I book the flight and have the miles credited to my Delta Skymiles account? I tried punching in my Skymiles # on Continental's site (thinking maybe they shared accounts or something), but, of course that didn't work.
Most of my miles are with Delta, and I think it's great that they are "sharing miles" or whatever, but, of course I want them credited to Delta.
TIA to anyone who can clear this up for me
What I don't understand, is exactly how I do that. How do I get a Continental, NW or UA flight to credit miles to my Delta Skymiles account?

For instance, when I access Continental's website, they ask for my onepass # (which I have), but how do I book the flight and have the miles credited to my Delta Skymiles account? I tried punching in my Skymiles # on Continental's site (thinking maybe they shared accounts or something), but, of course that didn't work.

Most of my miles are with Delta, and I think it's great that they are "sharing miles" or whatever, but, of course I want them credited to Delta.
TIA to anyone who can clear this up for me
