It depends where you're traveling from. The Pacific Ocean borders the western United States and the Atlantic Ocean borders the eastern United States.
Alaska is bordered on the south by the Pacific Ocean, on the north by the Arctic Ocean and the Bering Sea and Chukchi Sea to the west.
Florida is bordered on the east by the Atlantic Ocean and the west by the Gulf of Mexico.
legal travel documents
A passport of some kind is needed to travel into the United States if not a citizen.
If travelling Easterly, the main ocean is the Pacific. If travelling Westerly, the main ocean is the Atlantic. Either direction of travel means crossing lesser oceans.
atlantic ocean
Passport is a requisit.
None needed for travel within US
A passport is needed to cross any international border.
not necessary but recommended
The US does not have any oceans. However, the Pacific and Atlantic Oceans surround the US.
Yes. The Western Hemisphere Travel Initiative has ensured that this is now needed.
You need a valid passport only.
The Pacific and Atlantic border the US. There are no oceans in the US.