Why would you want to get away from NW's program? Personally, I wish I had chosen it. You get all of the benefits of the CO program and you get upgraded more when you fly NW (which has more upgrades to start with). You also get elite level choices in international itineraries when doing reward travel on NW. Internationally, NW generally offers a much better product than CO. NW also has plenty of special offers to get extra mileage points that you never see on CO. I like flying CO, but wish I had chosen NW for my FF#.