I flew into Tokyo from LAX. I focused on the locations that are not weight listed or sometimes weight listed.
LAX and JFX doesn’t show weight listed and MSP is sometimes. I didn’t even considered DWT or ATL or SEA because they are weight listed. I chose LAX since there are two flights per day. One to NRT in the AM and one to HND in the PM. JFK was my back up since availability looked good but there is only one flight per day. LAX was tight I had to use a S2 going. I also choose to go in the middle of the week. I returned on a Friday from NRT and the flight was wide open.
Don’t worry about trying different US departure cities…give yourself an extra day going and coming back just in case there are issues. Be prepared to use a S2 if you have to. I took the advice of r.m. Anderson.
My trip was WONDERFUL and I think I made the right decision going out of LAX. Now I will say that I returned on a Friday and I got bumped off three flights out of LAX to ATL. But that is why I gave myself the extra day (a weekend) to ensure I would get back home when I needed to.
Let me know if there is any other information tips I can help you with based on my experience if this is your first time going to Japan. It was fantastic