Requirements:

Transport of Human Remains

1. Certified copies of Death certificate (3)
2. Burial/Transit Permit
3. Passport of decedent (note: if not a Greek passport you must have an apostille on the Death Certificates) Apostille and Death Certificate have to be sent out to be translated by a translation service designated by the consulate.
4. Embalmer's affidavit (signed and notarized)
5. Letter of non-contagious disease (signed and notarized)
6. Funeral home letter (signed and notarized) stating: 1) only remains are inside the casket; 2) flight itinerary; 3) consignee's name, address, and telephone number; 4) name of cemetery and the town in which it is located
7. No restrictions on type of Casket
8. Screw down steel liner & Outer wood box required
9. A copy of the funeral bill

Consulates: http://www.state.gov/s/cpr/rls/fco/164201.htm#greece

Embassy: http://www.greekembassy.org/