We fly to LMO the first day. This time was the longest at 11.1 on the Hobbs. That was because of headwinds up to 30 MPH and diverting around storms. Usually about 10 hours or so.
About three flight hours to JC, depending on route.
We plan to be there on the weekend of the 5th. I know it your holiday weekend so I have no idea if it will be way to busy. I am guessing it will still be fun!