Travel guide
International travel with children: passports, consent and documents
A child being listed in a parent's passport may not be enough. Check an individual travel document and route-specific consent requirements for every child.
Prepared by the FlyVentis editorial team and regularly reviewed for travel and event accuracy.
Children need their own valid passport or accepted identity document to cross a border; being named in a parent's document may not be sufficient. Visa requirements are also assessed separately according to the child's nationality and destination.
A child travelling with one parent, a non-guardian adult or alone may need extra authorisation. There is no single EU-wide consent-letter rule: departure, transit and destination countries set their own conditions, and an airline can require an additional form.
When extra consent may be needed
A country may require notarisation, a specific language, an apostille or a certified translation. Do not rely on a generic online template; ask the relevant consulate and departure authority about the required form.
| Travel arrangement | Document to check |
|---|---|
| With both parents | Child's passport/ID and visa where required |
| With one parent | Other parent's consent or proof of sole responsibility |
| With relative/teacher | Guardian authorisation and accompanying adult details |
| Alone | Country authorisation and airline unaccompanied-minor procedure |
Departure, transit and arrival are separate
Even if the destination does not request a consent letter, the departure country or a transit point may. Different surnames, custody orders, a deceased parent or dual nationality can require extra evidence of relationship and authority.
- The child's individual passport or ID validity.
- Visa and transit conditions at every point on the route.
- Birth certificate or other evidence of parental relationship.
- Consent letter, custody order or relevant official evidence.
- Translation, notarisation and apostille requirements.
The airline's age and escort procedure
Age bands, mandatory or optional unaccompanied-minor service, connecting-flight acceptance and the receiving adult's documents differ by airline. Some carriers will not accept an interline connection or overnight transfer. Confirm the exact service in writing before booking online.
Build a simple but complete document file
- Keep originals together in a secure, accessible folder.
- Store encrypted copies and leave a copy with the other parent.
- Put accurate dates, route and accompanying-adult contacts in the consent.
- Include emergency contacts and the accommodation address.
- Make sure the same documents cover the return journey.
Health and day-to-day preparation
Confirm that travel insurance includes the child, check entry rules for regular medication and prepare allergy information. Prescription and medicine rules are separate from border consent. If using a child restraint or baby equipment on the flight, ask the airline which models are approved and how they count toward baggage.
The final 72-hour check
- Reopen the latest consular and border-authority guidance.
- Reconfirm any child service in the airline booking.
- Check that every name matches the passport character for character.
- Place original consent, custody and relationship records in hand luggage.
- Confirm that accompanying and receiving adults' phone numbers work.
Official source and related guides
Frequently asked questions
Does a child need a consent letter to travel abroad?
There is no single answer for every route. Departure, transit and destination countries may require extra consent for travel with one parent, another adult or alone; verify with authorities and the airline.
Does a baby need a separate passport?
Many international routes require children and babies to hold their own valid travel document. Check the passport or ID rule for the child's nationality and destination.
What if the child and parent have different surnames?
A birth certificate, marriage or divorce record, custody order or other official relationship evidence may be requested. Obtain the exact list from the relevant authority.
