No, only when you leave the borders of the US.
No, but take ID or a drivers licence. You'll need that to board a flight.
A passport is only needed for international travel.
No, you do not need a passport. You are remaining in one country and passports are for international travel.
No, any picture form of ID will do
No
You can fly to Mexico, but, you won't be able to fly back to the US.
Seeing as Texas and Louisiana are both US States, no you do need a passport to fly between them.
No. To fly an airplane you need a pilot's license. To fly on an airplane within the USA, NTSA guidelines require a passport (foreign or US), US passport card, or US drivers license or non-drivers license.
YES
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...
Not if staying in country.
yes
No, you do not need a passport inside the US but you will need a valid picture ID.
Yes, because you need it to come back in. You need your passport to travel anywhere in the world.
No. NTSA guidelines require a passport (foreign or US), US passport card, or US drivers license or non-drivers license.
Not if you are a US Citizen.
Not as a US Citizen.