I am by no means an expert but these are some things I have learned from YLF and real life. I spent a extended weekend in Chicago this summer to visit our son who was doing a research internship at UC.
Pack 1 Jacket/ multi use (save space and weight). Do you have something that can work on the plane, evenings and with outfit for the evening dinner/play?
Your shoe choices look great to me. Comfortable, neutral and hit day and evening needs.
I personally wear the same outfit coming and going on a flight.
I would recommend layers if possible for a) the plane and b) day and evening weather possibilities.
the 2 pant selections seem perfect in respect to color and wearing more than once. I would suggest more tops than bottoms that can mix and match.
the sweater and t-shirt (white one) seem like great options.
Your dresses are so pretty - do you plan on a dress for the dinner/play evening? If you are a color gal I suggest the green print dress as your items for day and touring around may be more neutral?
Hope this is helpful. Sounds like a fantastic girls weekend and I will say I am VERY Jealous you are going to see Hamilton. L.A. prices are out of this world ;-( and out of my reach....I am crushed.