Neither kids nor adults need a passport, since you are not traveling outside the U.S.
If you are an American citizen then you do not need a passport to fly from New York to Florida.
No.
yes
You need a passport to cross from America to Canada. While inside Canada, you don't need your passport, except for ID purposes.
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.
NO. You do not need a passport to fly within Canada.
Not from Northern Ireland as it is a part of the UK.
Probably not, but you will need it getting back to the US.
You can fly anywhere within the borders of your current country.
When flying within the United States, no passport is required. Anyone can fly out of state without the need to show a passport, though they will need some form of valid photo ID to be able to board the plane.
You don't need a passport to fly within the continental US or your birth certificate.
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.
None needed to travel within the US.
Yes. You need a passport to fly anywhere.