I listed problems below, and these may difficult to avoid without direct SEA-TYO, NH or DL.
Does anybody have a better idea?

1. SEA-LAX-NRT-ITM
Problem: departing SEA at 6AM (ETA 8PM)

4. SEA-LAX-KIX
Problem: departing SEA at 6AM, Non-SkySuite 788 (ETA 8PM)

2. SEA-SFO-HND-KIX
Problem: ETA for Kyoto is 12PM (Departing SEA at noon)

3. SEA-SFO-HND then Shinkansen
Problem: $100 extra expense than bus from airport to Kyoto (ETA 10PM)