How do I transfer a playlist created on an iPhone to an iPad or iTunes 11?

Hello,

I created a playlist on my iPhone that I really like. I don't see how to transfer it to my iPad. I was going to transfer that playlist to iTunes 11 and then to the iPad but I can't see how to do that. I really don't want to have to manually create the playlist on iTunes 11. Plus, I add songs onto the iPhone playlist. So I want to transfer that every once and a while. Thank you.