Both routes have similar 1Ks looking to do the same, during summer vacation time. I think your chances are slim, but flying either off days/times may help. Also, use the advanced class search for flights those days and see which fares are available still. That gives you a clue if award space is available, etc.. good luck!

https://www.united.com/web/en-us/content/mileageplus/awards/upgrade/default.aspx?POS=US#regions