International Travel With Children
By Priya Anand · May 22, 2026 · Updated August 25, 2026 · 10 min read
International travel with kids involves a layer of paperwork and preparation that domestic trips don’t — passports for every family member, potential consent letters, and health considerations that vary by destination. None of it is complicated on its own, but it does need more lead time than most families expect.
This guide focuses on the practical, easy-to-miss requirements rather than general packing or itinerary advice, which we cover elsewhere.
Quick facts
- Passport lead time
- 6–8 weeks standard, 2–3 weeks expedited (US)
- Passport validity
- Many countries require 6 months' validity beyond your travel dates
Passports and documents
Every child needs their own passport for international travel, regardless of age — there's no exception for infants. In the US, both parents must generally appear in person to apply for a child's passport, which surprises a lot of first-time applicants.
- Apply at least 8–10 weeks before your trip if possible; expedited processing exists but costs more and isn't guaranteed
- Check the destination country's specific validity requirement — 6 months beyond your travel dates is common but not universal
- Make photocopies (or phone photos) of every passport's photo page, stored separately from the originals
Traveling with one parent, or without both parents
If a child is traveling internationally with only one parent, or with grandparents or another guardian, many countries' border officials may ask for a notarized letter of consent from the non-traveling parent. This isn't always checked, but not having it when asked can mean real delays or, in rare cases, being denied entry.
For divorced or separated parents, it's worth carrying a copy of any custody agreement that addresses international travel, even if not strictly required by your destination.
Health preparation
- Check the CDC (or your country's equivalent) travel health notices for your specific destination — requirements vary significantly by country and can change
- Some destinations require or recommend specific vaccinations for children; check timelines, as some vaccines need to be given weeks before travel to be effective
- Pack a basic translated list of any allergies or medical conditions if traveling somewhere the local language differs from your own
- Confirm your health insurance covers you abroad, or purchase travel insurance that does — many domestic health plans do not
Practical tips once you're there
- Register your trip with your embassy's traveler program if one exists — it makes contact easier in an emergency
- Save the address of your accommodation, written in the local language, on your phone and on a card in your child's pocket in case you're separated
- Confirm what 911-equivalent emergency number applies at your destination before you need it
- A basic phrase or two in the local language — 'help,' 'doctor,' 'where is' — genuinely helps, even with a translation app as backup
Take this with you
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Frequently asked questions
Do infants need a passport to travel internationally?
Yes — every traveler, regardless of age, needs their own passport for international travel. There is no infant exception.
Do I need a letter from the other parent to travel internationally with my child?
It depends on the destination and how you're traveling. Many countries don't require it, but some border officials do ask, particularly if only one parent's name appears on the child's passport application. It's inexpensive insurance to carry a notarized letter regardless.
How early should I apply for my child's first passport?
In the US, standard processing runs 6–8 weeks; we'd suggest applying at least 10–12 weeks before your planned trip to leave a buffer for any issues with the application.
