It is a business trip being paid for by someone else. So, the dates are somewhat fixed, unless I wanted to spend some extra time there - which I don't. I suppose I could just buy the expensive ticket and pass it along to the sponsor and hope that they do not compare the fare to the others that are much cheaper. I may use CO since they are one of the less expensive fares if I take a commuter flight via CLE. I did not know that you could get NW miles on Midwest Express. Are they still all first class?