Travel guides / Passports, visas and ID
Passports, visas and IDTraveling with children: consent letters and documents
If a child travels abroad without both parents, border officers may ask for proof that the other parent agrees. A short consent letter can prevent delays.
When to carry a consent letter
Bring one when a child travels internationally with only one parent, or with grandparents, relatives, a school group or other adults. US Customs and Border Protection recommends it, and some countries require it.
What to include
- The child's full name, date of birth and passport number.
- The name of the adult travelling with the child.
- The trip dates and destinations.
- A statement that the absent parent (or parents) agree to the trip.
- The absent parent's signature, address and phone number, and a copy of their passport or ID.
Does it need a notary?
US law does not require notarization, but CBP suggests it, and some countries and airlines expect it. Having it notarized is the safer choice.
Other documents
- The child's birth certificate, showing the parents' names.
- If one parent has sole custody, or the other parent has died, bring the court order or death certificate.
- If your last name differs from your child's, carry the birth certificate to show your relationship.
Check the rules where you are going
Some countries have strict rules for minors, especially when leaving. Check the destination country's embassy website and your airline, which may have its own forms for children travelling alone.
Handy tools
Keep reading
- REAL ID: do you need one to fly in the US?
- How to renew a US passport (and how long it takes)
- ESTA and the Visa Waiver Program: who needs it and what it costs
Sources
Rules, fees and processing times change. Check the official sources above before you travel. Last checked October 2026.