There currently are two options for taking a crematory container on your flight:
Carry-on: You are allowed to carry-on a crematory container, but it must pass through x-ray screening with other carry-on materials. Mabrey wooden urns are easily scanned, ideal for carry-on. If the container is made of a material that prevents the screener from clearly being able to see what is inside, then the container will not be allowed through the security checkpoint.
Checked Baggage: You may transport the urn as checked baggage provided that it is successfully screened. TSA will screen the urn using a variety of techniques; if cleared, it will be permitted as checked baggage. Again, Mabrey wooden urns are easily scanned.
Please note the following TSA information: Out of respect for the deceased, the screener may not open the container under any circumstance. Crematory containers are made from many different types of materials, all with varying thickness. TSA suggests that you purchase a crematory container made of a lighter weight material such as wood that can be successfully X-rayed. The TSA will continue to work with funeral home associations to provide additional guidance in the future. Please check with your air carrier about any restrictions that may apply.