What do you need to take your dads ashes on a plain Ireland?

1. A death certificate. This is the most important document, as it will prove that your father has passed away.

2. A cremation certificate. This certificate will show that your father's body has been cremated.

3. A permit for the transportation of human remains. Depending on the airline, you may also need to get a permit for transporting human remains.

4. An appropriate container for the ashes. The container should be made of a material that is strong and durable. It should also be sealed tightly to prevent any leakage and labeled accordingly.

5. A copy of your passport and visa (if required). Make sure that your passport is valid for at least six months beyond your intended date of travel to Ireland. If you require a visa to travel to Ireland, make sure that it is valid for your entire stay.

6. Contact the airline in advance to let them know that you will be traveling with your father's ashes. Many airlines have specific restrictions on traveling with human remains, so it's important to contact them ahead of time to make sure that you are aware of and are able to comply with these regulations.

Please note that these requirements may vary depending on the airline and the country of origin and destination.

It is also important to check with the embassy or consulate of the country you are traveling to for any additional requirements.