Child Travel Consent When One Parent Travels
United States · Canada · United Kingdomversion 2026-09
When one parent travels with a child: what the consent letter should say, who signs, and which extra documents US, Canadian and UK sources list.
When one parent takes a child across a border and the other stays home, the question that comes up first is whether any letter is expected at all — and whether a shared surname settles it. The sources answer both: Canadian guidance recommends a letter for a child travelling with only one parent, and government guidance in all three countries describes officials who may ask about the relationship. The form on this site prints the letter with the details those sources list.
When the other parent is not travelling
Global Affairs Canada recommends that a child travelling without both parents or legal guardians carry a signed consent letter, and lists travelling with only one parent among the situations it covers. It adds that a letter is recommended even where the single parent has full or sole custody, and even where the child is with one parent for only part of a trip — for example, returning to Canada with one parent while the other stays behind. Its stated consequence of not producing a letter on request is delay, or refusal to enter or exit a country.
United States guidance reaches the same recommendation: CBP strongly recommends that a child carry a letter when travelling with a "single parent", and the same list covers a relative, a legal guardian or a non-relative adult.
What the letter needs to say about the other parent
- The name of the parent who is not travelling, as printed on their ID.
- That parent's address and telephone number, which IRCC asks for when a minor enters Canada with one parent.
- A signature from that parent, with a date.
- Contact details for the trip, including where the child will be staying.
- Where custody is shared, copies of the custody documents, plus the child's birth certificate and passport.
Sole decision-making, no contact, or a deceased parent
Global Affairs Canada recommends a consent letter even if a parenting order or agreement allows one parent to make travel decisions alone, because border officials or airline staff may still ask for proof that all parents agree. Where getting another parent's consent is not possible or could be unsafe, that page directs readers to legal advice.
For specific situations, the sources list specific paperwork. IRCC asks for copies of legal custody documents where parents are separated or divorced and share custody, and for guardianship or adoption papers where a guardian or adoptive parent travels with the child. U.S. Embassy guidance recommends that single parents carry documentary proof that there is no other parent — a birth certificate naming only one parent, a single adoption, a parent's death, or sole custody. Carnival's minor guest policy names the same kinds of paperwork, and a death certificate where a parent has died.
Same surname does not remove the question
British guidance describes what a Border Force officer may do: where the adult is not the child's parent, or may appear not to be — for example because the family name differs — officers may ask a few questions to establish the relationship. Documents it names as helpful include a birth or adoption certificate, a marriage or divorce certificate where surnames differ, and a letter from the child's parent giving authority and contact details.
Who signs
| Situation | Who the sources say signs | Source |
|---|---|---|
| Both parents living, one travelling | The parent who is not travelling | S7 |
| Parents married or in a common-law relationship | The non-travelling parent; marital status does not remove the recommendation | S7, S8 |
| Parents separated or divorced, custody shared | The non-travelling parent, with copies of the custody documents carried | S9 |
| One parent has sole decision-making responsibility | A letter is recommended even where a parenting order lets one parent decide on travel alone | S7 |
| Consent not possible, unavailable parent, or safety concerns | The source directs readers to legal advice; guidance also points to documentary proof of the situation | S7, S2 |
| Another adult travels with the child | The parent(s) or guardian(s); IRCC states the letter does not need to be certified, with a photocopy of signed passports or national IDs attached | S9 |
The third-party adult page covers what changes when the child travels with someone outside the household, and the documents checklist covers originals against copies.
Frequently asked questions
Is a letter needed when only one parent travels?
Canadian guidance recommends it, including where that parent has full or sole custody. U.S. guidance strongly recommends a letter when a child travels with a single parent. For the United Kingdom, GOV.UK states that permission of everyone with parental responsibility, or a court, is needed before a child is taken abroad.
What if the other parent cannot sign?
Global Affairs Canada recommends a letter even where a parenting order allows one parent to decide travel alone, and where consent is not possible or could be unsafe it directs readers to legal advice. Guidance in the United States recommends documentary proof of the situation, such as a birth certificate naming only one parent or a sole custody order.
Do we need the letter if we have the same surname?
No source makes the letter conditional on surnames. British guidance states that officers may ask questions where the adult may appear not to be the parent, for example with a different family name, and suggests carrying evidence of the relationship as well.
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Jurisdiction: United States · Canada · United Kingdom — version 2026-09.
What government sources say about notarisation and witnesses (information only):
- U.S. Customs and Border Protection states that there is no regulation requiring a consent letter to be notarized, but that CBP highly advises it. Certain destination countries require a consent letter for children arriving or leaving without both parents, in some cases notarized.
- Global Affairs Canada states that a consent letter is not legally required in Canada, that any adult may witness the signing, and that it strongly recommends a notary public witness it. Original signed letters are best.
- For the United Kingdom, GOV.UK states you must get the permission of everyone with parental responsibility, or a court, before taking a child abroad, and that a letter from that person is usually enough to show permission.
- Cruise lines set their own rules and they differ. On 13 September 2026 the published pages of Royal Caribbean, Carnival, Disney Cruise Line and Norwegian did not all require the same document.
- Royal Caribbean: adults who are not the parent or legal guardian must present an original, notarized letter signed by the child's parent(s).
- Carnival: original signed letter strongly recommended when a parent or legal guardian is not sailing.
- Disney Cruise Line: the Minor Authorization Form is required for each child travelling without a parent or legal guardian.
- Norwegian: their Parent/Guardian Consent Form must be signed by both living parents/legal guardians, with a copy of government-issued ID attached.
Check the current published policy of the airline, cruise line or border agency you are dealing with.
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Sources
Sumber:
- S2 — https://pl.usembassy.gov/child-travelers — U.S. Embassy in Poland (U.S. Department of State) — checked 13 September 2026
- S7 — https://travel.gc.ca/travelling/children/consent-letter — Global Affairs Canada — checked 13 September 2026
- S8 — https://travel.gc.ca/travelling/children/faq — Global Affairs Canada (FAQ) — checked 13 September 2026
- S9 — https://www.canada.ca/en/immigration-refugees-citizenship/services/visit-canada/minor-children-travelling-canada.html — Immigration, Refugees and Citizenship Canada — checked 13 September 2026
- S14 — https://www.gov.uk/government/publications/getting-through-the-uk-border-faster/faster-travel-through-the-uk-border — GOV.UK (updated 28 July 2026) — checked 13 September 2026
- S17 — https://help.carnival.com/app/answers/detail/a_id/10972/ — Carnival Cruise Line (Minor Guest Policy, effective 1 February 2025) — checked 13 September 2026