Hello all. My wife will be working over in Norway in late Feb and I'm planning on flying out to spend a few days with her in London after her work is done for the week. There are a couple planes I've never flown on before, specifically 777 and 747 and would like to work at least one of those into my outboud trip because I will be flying by myself and don't mind the extra stops. The plan on the way back would be to fly Heathrow MSP on the DL 764. KLM operates both the 777 and 747 out of JFK to AMS but I am having the hardest time being able to book that flight without spending a night in NY, which I don't really want to do. Does anyone know any way around Delta.com's insistance on flying Delta only?

I appreciate any and all help!