Yes, because you need it to come back in. You need your passport to travel anywhere in the world.
No, you do not need a passport to fly within the United States of America. If you are going out of the country, you will need to get one.
You do not need a passport because they are both states in the U.S.A.You would need one if you're going to Mexico from California though.I think you may have got the state and country mixed up.
Yes.
To Canada you can; to Mexico you can't.
Yes. If you enter any country on a flight you need a passport.
Although it was not always necessary, currently (as of January 2012), yes it is necessary. UNLESS you are a frequent traveller or live in a contiguous border state, then there are special ID cards issued which can take the place of a US Passport.
US citizens cruising to and from a US port do not need a passport.
Yes you do. you need a passport to fly on a plane
A passport is not needed to fly from one US state to another. However, you will need a photo ID of some sort to board the plane.
Question:I'm Canadian - do I need a passport to travel to Mexico? The U.S. Western Hemisphere Travel Initiative is phasing in passport requirements for travel between the U.S., Canada and Mexico. How does this affect Canadians planning to travel to Mexico? Answer: It's not an official requirement for Canadian citizens to present a passport for entry into Mexico at the moment, but you will need one if you're traveling through the United States. If you have a direct flight from Canada to Mexico, you don't need a passport, it is sufficient to show proof of identity and citizenship (for example with a birth certificate and driver's license).I think the answer is yes, for practical purposes, and for sensible people. Mexico is interesting to travel in to and out of. In, if landing at an airport, you might you might push an entry button. If you get a green light, no immigration check. Red, you get checked. By car, you might not even be checked at all. Maybe manana.
It you are an American citizen, you don't need any document besides your passport, which is actually needed for your return into the United States. If you are not American and are reaching Mexico through the United States, you would need the American visa to enter Mexico; then you will have to request a Mexican visa that can be provided on the spot by the immigration agents.
yes but you need one to get back into the US