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If you are just going on vacation be advised some places have QUARANTINE and FIDO may not be allowed out for a while. It can also be costly.

You will need his papers from the vet and check with your airline and vet for details of travel. You also need to check the "Import" regulations for the country you are going to.

It relies upon on you canines. Does he/she do properly interior the motor vehicle or does he get automobile sick or stress? If no longer then it could probable be ok. using fact the canines is so youthful and small you may carry him/her on the airplane with you and carry him on the airplane; which will probable make your canines sense extra useful too.