I once met a grandmother in an airport parking lot at 5:40 in the morning. Her flight to Phoenix with two grandkids was at seven, and the airline had told her the night before to bring a signed, notarized letter from the parents. Nobody had mentioned it when the tickets were bought in June.
We got it done on the hood of her car with the parents on speakerphone, and she made her flight. But it didn't have to be that close, and for you it doesn't have to be.
What a travel consent letter is
It's a short letter from a child's parent or legal guardian saying, in writing, that the child has permission to travel with a named adult, on named dates, to a named place. A notary watches the parent sign it and adds a stamp confirming the person who signed is who they say they are.
That stamp is the whole point. Anyone can type a permission letter. The notarization is what makes a gate agent, a border officer, or an emergency room clerk treat it as something more than a piece of paper somebody printed at home.
When does a child actually need one?
There's no single law that says "always." What there is, is a long list of people who can ask for one and stop the trip if it isn't there. In my experience around the Treasure Valley, these are the situations that come up:
- A minor flying with one parent instead of both — especially on international routes, where a letter from the non-traveling parent is commonly requested.
- A child traveling with grandparents, an aunt, or a family friend. The most common one I'm called for.
- Crossing into Canada or Mexico. Border officers are trained to look closely at an adult traveling with a child who isn't theirs.
- School, church, or sports travel — overnight programs and out-of-state tournaments often require a notarized permission and medical-authorization form.
- An unaccompanied minor being met at the other end by someone other than a parent.
If you're divorced or share custody, the answer may also live in your parenting plan. That's worth a look well before you book.
Where my job ends: I can notarize your signature on a travel consent letter. I can't write it for you, tell you what it should say, or tell you whether your custody order requires one — that's an attorney's work, not a notary's. And I can't tell you what a particular airline or country will accept. Call the airline and check the destination's requirements, then bring me the finished letter.
What to put in the letter
- The child's full legal name and date of birth.
- The traveling adult's full legal name and relationship to the child.
- Travel dates, destination, and how they're getting there.
- The consenting parent's or guardian's full name, address, and phone number — somewhere reachable during the trip.
- A clear sentence granting permission for that trip.
- Any authorization for medical care the adult may need to consent to.
- Signature lines for each parent or guardian with legal custody.
- A notary block left blank. Don't sign it yet.
That last one matters. If you sign before I get there, I can't notarize it — the signature has to happen in front of me. It's the single most common reason I have to ask someone to reprint a page. The same rule shows up across every document type in my post on preparing documents before your signing.
How long does a travel-letter notarization take?
Ten to fifteen minutes, start to finish, if everyone has ID and the letter is printed. Both parents need to be present for their own signatures — or we schedule two appointments, which is fine and happens often. Bring an unexpired, government-issued photo ID for each signer. If your form has witness lines, my post on when you need witnesses explains who qualifies.
Before-the-trip checklist
- Ask the airline, tour operator, or school what exactly they require — in writing if you can get it.
- Print the letter. Leave the signatures and notary block blank.
- Get every custodial parent or guardian lined up, each with photo ID.
- Schedule the notarization at least a week out. Two weeks for international travel.
- Send the traveling adult the original, and keep a photo of it on your phone.
- Include copies of the child's birth certificate and insurance card if the destination or program asks for them.
Getting it notarized in Boise without rearranging your day
This is exactly the kind of errand that gets pushed to the last minute, which is why I come to you. Your kitchen table after the kids are in bed, the office on your lunch break, the parking lot at the soccer field — I've done all three. Evenings and weekends are normal hours for me, not favors.
See everything I handle, pick a time online, or just call or text (208) 870-8576. And if you want a sense of how these appointments go before you book, 400-plus Treasure Valley families have written about theirs.
Get the letter done in September and it'll be the one part of the trip you never think about again.