I already subscribe to The Economist, so that's out. Thanks for the suggestion!

I have called DL, but the rep I talked to didn't mention partner airlines. I will check that out. (Although looking on the web, I didn't see anything obvious.)

I'm flying from Illinois. The two closest airports are Champaign, CMI (where I live) and Bloomington, BMI. Delta flies a shuttle from BMI to its ATL hub and I think also to Cincinnati, but I don't know where else they fly from BMI. I got these miles when Delta briefly flew out of Champaign, but they didn't stay long. That's why I have so few miles; I will have to supplement them from some Amex Membership Rewards.