Traveling West from the Contiguous US: Continents You'll Encounter

Heading west from the contiguous United States:

1. North America – You first enter Alaska (still North America).
2. Pacific Ocean – Cross the Bering Sea or Gulf of Alaska.
3. Asia – Reach Russia's Far East (Chukotka, Kamchatka) or, continuing south, Japan, Korea, China.

If you travel southwest across the Pacific, you'll encounter Oceania (Hawaii, then Polynesia, Melanesia, Australia). The first continental landmass after North America is Asia.