Officially, you don't need a passport to fly from Belfast to London because both places are within the UK. However, due to increased security in recent years, an acceptable photo ID is required to board a flight. The most acceptable photo ID is a passport. You may also be able to use a photo card driving licence but you should check with the airline that you are travelling with, as they are the people who will decide if you can board their plane or not.
In theory none - because they are both in the United Kingdom. In practice, you will need acceptable photo ID to get on a plane. Check with whichever carrier you are using for a definitive answer - whether that be an airline or a ferry company as they have different criteria.
what doi need
Check with the ferry operators
Belfast is part of the UK. Technically you do not need any form of identification
Yes. A valid photo license is an acceptable form of id.
You will certainly need a passport - since Ireland is off the UK mainland.
A passport money for ticktes and a plane would help.
I didn't need any ID when I went to the Isle of Man from Liverpool last year. (Please note capital letters.)
Yes, as long as it has your photo on the licence Airlines only need photographic ID not passports to travel internally within the UK.
you require photogrpahic ID eg, passport or driving licence, your airline will be able to provide you with a full list of appropriate ID's
You need photographic ID for ANY flight!
well you need an ID to go there.
If you fly, the airline will request some form of ID. Currently the ferry companies don't require ID. There is no legal requirement for passports between the ROI and the UK.