The shortest route is on I-90 W.
99 South to I-5 South.
Just take I-10 EAST to El Paso.
Route-66 is the best driving route from Los Angeles to Ontario Canada
The shortest and fastest route from Los Angeles to Sacramento is through or over the San Joaquin Valley. Flying between the two cities takes approximately 1 hour and fifteen minutes; driving up through the San Joaquin Valley on I-5 (384 miles) takes approximately six hours.
About 1,900 miles of that 2,006 mile trip can be effectively driven on I-40 much of which is the old US Route 66. This is the route in detail:Take I-40 WEST through Tennessee, Arkansas, Oklahoma, Texas, New Mexico and Arizona to I-15 SOUTH in Barstow, CALIFORNIA.Take I-15 SOUTH to I-10 WEST to Los Angeles at EXIT 109A.Take I-10 WEST to Los Angeles.
On March 24, 1989, the tanker Exxon Valdez, en route from Valdez, Alaska to Los Angeles, California, ran aground on Bligh Reef in Prince William Sound, Alaska.
I-15 SOUTH to I-10 WEST to Los Angeles.
Take I-5 SOUTH to Los Angeles.
See the link below for a map with directions from Los Angeles to San Francisco. US Highway 101 will get you there nicely ... a good scenic route that will be much cooler and lots more interesting than I-5.
Interstate 40 runs from all the way from Barstow, CA to Nashville. That's the easiest and fastest. You get to I-40 from I-15.
Northeast