We recommend following the TSA guidelines for cremated remains when you are planning to travel with solidified remains. Go to the following link to learn more:
We highly recommend checking any travel restrictions that may apply to the country you are traveling to. You can check this by contacting the embassy for the country you are going to to get the most up-to-date information.
For domestic or international travel:
Your airline is a great resource to explain any restrictions or requirements for taking cremated remains to your destination.