Hawaii is an archipelago in the central Pacific Ocean, ~3,850 km (2,400 mi) from the nearest continental US coast (California). There are no roads, bridges, or ferries connecting it to the mainland. You cannot travel "directly west" by car, train, or scheduled passenger ship from any West Coast city—San Francisco, Los Angeles, San Diego, or any point in Mexico.
Non-stop flights from Los Angeles (LAX), San Francisco (SFO), San Diego (SAN), Oakland (OAK), San Jose (SJC), Seattle (SEA), Portland (PDX) to Honolulu (HNL), Kahului (OGG), Kona (KOA), Lihue (LIH) on Hawaiian, United, Alaska, Delta, American, Southwest. Flight time: 5.5–6.5 hours.
No direct flights from Mexican cities to Hawaii (as of 2024). Connect via US West Coast.
You cannot reach Hawaii by traveling west from the mainland over land or sea. You must fly (or take a rare repositioning cruise). Los Angeles is the closest major departure point, but still 2,500 miles of open ocean away.