Not if staying in country.
Yes, you do not need a passport to fly to the US Virgin Islands if you are a US citizen.
No, you do not need a passport inside the US but you will need a valid picture ID.
You do not need a passport to fly to another state in the US You DO need a passport to travel anywhere out of the US ie Mexico, Canada ect...
Yes, because you need it to come back in. You need your passport to travel anywhere in the world.
If you are a US citizen you don't need a passport to fly within the USA (for example from Kansas City to Chicago), but you will need some form of official photo ID such as a drivers licence. If you are not a US citizen you will also need photo ID and a passport is best for this.
NO. You do not need a passport to fly within Canada.
YES
Seeing as Texas and Louisiana are both US States, no you do need a passport to fly between them.
Not if you are a US Citizen.
Not as a US Citizen.
You do not need a passport to fly from Los Angeles, CA to Denver, CO. As long as you are a US Citizen, the only identification you will need is your driver's license or state issued identification card.
Probably not, but you will need it getting back to the US.