A random search for flights NRT to LAX on 05Jun,Fri shows:
Nonstop flights -
09hr 45min Delta Airlines Flt 7871 Dep 02:55pm $2,101.oo + Taxes $161
09hr 55min Northwest Airlines Flt 2 Dep 03:30pm $2,184.oo + Taxes $79
09hr 41min Asiana Airlines Flt 6608 Dep 05:30pm $2,312.oo + Taxes $80
10hr 15min Singapore Airlines Flt 12 Dep 06:45pm $2,617.oo + Taxes $79
1 Stop flights -
18hr 45min Air China NRT-PEK-LAX Flt 926/983 $659.oo + Taxes $135
12hrs?
4
4 sometimes 5
about 5, maybe 4.5
about 4 hours Miami is 8 because California takes a shortcut but if 2 planes 12 hours
Since we have no idea where you're starting from, we can't answer this.
how many hour by plane from sacramento,ca.to san deigo,ca
about 5 hours, depends on the plane
The 'great circle' distance ( what a plane would fly direct) from san Diego, California to Atsugi, Honshu, Japan's airport is (SAN to NJA) 5613 mi.
2 hours
14 hours.
About 17 hours.