You need a passport if you are going to travel outside of the country.
If entering Mexico via airplane, yes.
In the northwest states no in the whole world of course every time you travel by airplane internationally you need a passport
passport money airplane map luggage
If you are going to Mexico and have a passport you do not need a driver's license if you are flying in an airplane. No. Actually, if you are not driving but simply crossing the border with a passport, you should not have problems reentering the United States from Mexico.
a passport and a plane ticket
Yes, you need a passport to travel to Europe.
Yes, you need a passport to travel to Paris.
I would think not on the passport. All airports (to my knowledge) require an ID. Since you're going from one US state to another, I don't see the need for a passport. I'd call your airline or travel agent just to be sure.
You need a passport
No, you do not need a passport to travel to Arizona if you are a U.S. citizen.
Yes, you need a valid passport to travel to Brazil.