Flying with Ashes from Canada to the US: TSA and CATSA Rules

You can absolutely fly with cremated remains from Canada to the United States as carry-on luggage. Ashes are exempt from biological and quarantine inspections on both sides of the border. But security screening rules are strict, and the wrong urn material will get you stopped at the checkpoint with no way through.

The Rule That Catches People

Both CATSA (Canadian Air Transport Security Authority) and the TSA require cremated remains to pass completely through the X-ray machine. There is no alternative. Security officers are legally prohibited from opening a cremation container — even if the family explicitly gives permission.

This means the urn must be made of a material the X-ray can see through. If the machine cannot produce a clear image of what is inside, the container is denied passage. No exceptions, no supervisor override, no secondary screening.

Materials That Pass vs. Materials That Block

Will clear X-ray: plastic, cardboard, unfinished wood, cloth, wicker, light biodegradable polymers

Will be denied: lead, heavy brass, marble, granite, thick ceramic, solid metal, dense stone

Most permanent display urns are made of materials that block X-ray. The solution is to carry the ashes in a temporary travel container — a sealed plastic or cardboard container from the funeral home — and pack the empty permanent urn in checked baggage.

Ask the Canadian funeral home for a temporary travel container specifically designed for airline transport. Most provide them as a standard part of their cremation service.

Documents to Carry at the Checkpoint

Keep these three documents accessible at the top of your carry-on — not buried in your checked luggage:

1. Certificate of Cremation issued by the Canadian crematorium
2. Certified copy of the provincial death certificate
3. Letter on funeral home letterhead confirming the container holds only the cremated remains of the named individual

Security officers may or may not ask to see these documents. Having them ready prevents delays and questions.

The 350ml Powder Rule

Under Transport Canada Information Bulletin IB-2025-009, passengers cannot carry more than 350 milliliters of any inorganic powder or granular substance through passenger screening. Some regional screening officers apply this strictly to loose cremated remains.

The workaround: keep the ashes professionally sealed within their primary container and carry the supporting documentation. Do not transfer ashes into a Ziploc bag or loose container.

Checked Luggage vs. Carry-On

If you are considering checked luggage, confirm the operating airline's policy. Most families prefer carry-on for two reasons: checked bags occasionally get lost or delayed, and the emotional weight of having the ashes out of your physical possession during the flight is significant.

If you do check the ashes, use a rigid, shock-absorbing outer container and seal the inner container against leaks. Label the package "Cremated Human Remains" on the outside. Airlines do not prohibit cremated remains in checked luggage, but they will not take responsibility for damage or loss beyond their standard liability limits.

The Alternative: Mail Instead of Fly

If carrying the ashes personally is not practical — the next of kin cannot travel to Canada, or the family is managing the process remotely — Canada Post can ship cremated remains to a US address. This avoids airport security entirely and costs $150–$250 CAD via Xpresspost.

The American Dies in Canada — Family Emergency Guide includes a pre-flight packing checklist for cremated remains, plus the specific airline policies for Air Canada and WestJet.