What do I bring to the airport if my last name is different from my child's?

A copy of the child's birth certificate, which the State Department says to always bring, and a marriage or divorce certificate if your name changed, which UK Border Force suggests. If the other parent is not traveling, bring their signed consent letter, notarized if you can, with a copy of their signed ID attached.

Do I need to carry my marriage certificate?

If your surname differs from your child's because of marriage or divorce, UK Border Force suggests carrying the marriage or divorce certificate. It is a sensible habit for any destination.

Do both parents need to sign?

If the child travels with a grandparent, aunt, uncle or friend, yes. USA.gov says both parents should sign when a child travels with a guardian or alone, and Canada asks every parent with custody or decision-making responsibility who is not traveling to sign. If only one parent is on the trip, the parent staying home signs. If one parent has sole custody, that parent signs and you carry a copy of the custody order.

Will I be stopped for having a different name?

Not necessarily, but officers may ask questions. EU border guards are required to check that the adults with a child have parental care over them. Having the documents ready makes it quick.

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Different Last Name Than Your Child? What to Bring to the Airport

By Tanika Hall · Rules checked against official sources on 29 October 2026

TL;DR

Carry your child's birth certificate. The State Department says to always bring a copy or other evidence of your legal relationship.
If your name changed through marriage or divorce, carry the marriage or divorce certificate that links the names. UK Border Force suggests exactly this.
If the other parent is not on the trip, carry their signed consent letter. Use our free consent letter template.
Aunts, uncles and grandparents with a different last name rely on the parents' notarized letter. See our grandparents guide.

Why it comes up

Officers check that adults traveling with children have the right to. EU border guards are required to check that the people accompanying a minor have parental care over them, especially when only one adult is traveling and there are serious grounds for suspicion. A different surname is one of the things that can prompt a question.

What to carry

A copy of the child's birth certificate. The State Department says to always bring this or other evidence of your legal relationship.
A marriage or divorce certificate if you are the parent but have a different surname from the child (UK Border Force).
A consent letter from the other parent if they are not traveling, notarized if you can. Our free template has the fields.

If you are an aunt, uncle or grandparent

A different last name is normal, and no official source we found says which papers prove the relationship. The parents' signed, notarized letter is what does the work. See can I take my niece out of the country? and traveling with grandchildren internationally.

Sources: GOV.UK: children travelling to the UK · US State Department: travel with minors · EU Schengen Borders Code, Annex VII

Common questions

What do I bring to the airport if my last name is different from my child's?: A copy of the child's birth certificate, which the State Department says to always bring, and a marriage or divorce certificate if your name changed, which UK Border Force suggests. If the other parent is not traveling, bring their signed consent letter, notarized if you can, with a copy of their signed ID attached.
Do I need to carry my marriage certificate?: If your surname differs from your child's because of marriage or divorce, UK Border Force suggests carrying the marriage or divorce certificate. It is a sensible habit for any destination.
Do both parents need to sign?: If the child travels with a grandparent, aunt, uncle or friend, yes. USA.gov says both parents should sign when a child travels with a guardian or alone, and Canada asks every parent with custody or decision-making responsibility who is not traveling to sign. If only one parent is on the trip, the parent staying home signs. If one parent has sole custody, that parent signs and you carry a copy of the custody order.
Will I be stopped for having a different name?: Not necessarily, but officers may ask questions. EU border guards are required to check that the adults with a child have parental care over them. Having the documents ready makes it quick.

Want the letters ready to fill in? The Child Travel Consent Kit has Letter A for one parent traveling, Letter B for a grandparent, relative or friend, a notarization checklist and notes for ten destinations. Get the kit for $14.

Related guides

This guide explains what official sources say. It is not legal advice, and border officers apply the rules on the day. Check the linked source and your airline's own rules before you fly, and talk to a family law attorney if there is a custody order or a dispute.