Yes
does my passport need to be in date to go to belfast
He/She will need an ID of some sort, but not specifically a passport.
No
No, Belfast is in Northern Ireland which is part of the UK - you don't need a passport to travel from one part of the country to another.
Do u need a passport from scotland via dunegal going by ferry
No
No but you do need I.D.
technically, yes, unless you are a citizen of Ireland or the United Kingdom Very often people are not asked for passports but you should have one if you are a citizen of any other country
NO
Yes, Scotland is out side of the U.S.
no
No, you do not need a passport just a form of photo ID.