Originally Posted by flyinbob
I've never done something like this, but one thing strikes me. A lot of segments with only about 1 hour before your return begins. If any of those other flights are late causing missed connections, or if you miss the first leg of your return flight out of LAS, UA may put you on a direct flight LAS-ORD and to your final destination, missing all the segments..
I think if you are misconnceted, you can write to MP and have them credit you the miles of your original itinery.