Travel to Europe requires a passport. You’ll need a passport for every member of your family including all children. You’ll be required to show the passports with your boarding passes to the TSA agents. Some countries require that your passport be valid for three to six months after the last day of your stay.
The TSA agents will likely speak directly to your children and ask them their names and who you are. TSA is looking for possible child abduction cases.
If International Travel is with Only One Parent
Minors who are not accompanied by both parents should always carry a notarized authorization to travel that is signed by the absent parent. Do this even if you don’t think you’ll be asked. Don’t take a chance. We are providing a “sample form” below. Complete any form with the full names and addresses of the child, both parents and the child’s traveling companions. Carry a copy of the child’s medical insurance card along with notarized permission for the responsible adult to authorize medical treatment. These are responsible precautions!
If a parent is deceased, note that fact in the document. Carry a copy of the death certificate. If one parent has sole custody and the other parent is unavailable to sign a document, carry a copy of the court order clarifying custody. If the child might be considered to have dual citizenship in the country visited, these items should be considered mandatory by the traveling parent to avoid any question by the TSA. The US Govt takes no chances with child abduction cases.
Here are some sample forms. You can write your own or use a different form. We are using these as simple suggested forms. Call the TSA is you have any questions.