Tips for Traveling With Kids When You Don't Share the Same Last Name
It’s no secret that what was once a "traditional family" structure has drastically evolved over the past few decades. Now, with all types of family arrangements, children may not always share the same last name as their parents. (See our related story on the documents LGBTQ families should never travel without.)
In today’s modern world, it’s increasingly common for adults to travel with kids that don’t share the same last name. From an immediate family standpoint, perhaps the children have the same last name as the other parent while you still kept your own (like in my case), or maybe the kids have a last name that is a hybrid of both.
Maybe you’re a grandparent, step-parent, legal guardian or chaperone that’s taking a trip with children that aren’t biologically your own. Of course it's perfectly legal to travel with kids who don't share your last name or may not be related to you, but these circumstances do require a bit more preparation beforehand to avoid any headaches with security and customs. This is true even if you are the child's parent.
As a mom that travels solo often with my two young kids with different last names than mine, I'm aware that there's a bit more preparation needed on my end before I hit the skies with my offspring.

ID for Kids On Domestic Flights
The TSA does not require children under 18 to provide identification when traveling with a companion within the United States, but some airlines have their own protocols. For example, Southwest strictly enforces its policy requiring adults to provide a copy of a birth certificate for children under the age of 2 traveling as lap infants — even on domestic flights. You should always contact the airline for information on its policies or questions regarding specific ID requirements for travelers under 18.
Of course, traveling domestically with kids is a lot easier than traveling internationally — where you’ll most likely run into more questioning and extra security screenings. But, having your documents in order will allow you to breeze through the process — no matter where you're flying. Here are our thoughts on the best domestic airlines for families.
ID for Kids On International Flights
Traveling internationally with kids subjects travelers to more ID and consent requirements.
First and foremost, passports are required for all passengers traveling internationally, regardless of age or last name. Unlike the case of domestic flights, taking a child on an international flight without presence/permission of the other parent or legal guardian is not permitted.
This requirement is in place to prevent the unfortunate cases of kidnapping, even in families. There is no "official consent form," so you'll have to prepare one on your own. As a guideline, it's generally a notarized and dated statement from one parent/guardian granting permission to the other parent or traveling adult to travel internationally with the child.
In the letter, be sure to include a statement of permission to travel along with the names of the children, the intended travel dates/destination, the names of the adult(s) permitted to travel with the children, and the names and contact information of the parent(s) granting permission.

I always keep a generic signed/notarized consent form with me when I travel internationally with the kids, but I've rarely been asked to show it. In fact, even if both parents are flying together, it’s not a bad idea for each parent to carry a signed and notarized consent form just in case you somehow get separated. If you're curious, here are our thoughts on the most family-friendly international carriers.
Be Prepared for Extra Time at the Airport
On a recent trip to London with my 4-year-old son, the UK immigrations officer quickly noticed that my son’s last name differed from mine and slyly “interviewed” my son in a playful manner: “What’s your name, buddy? Are you traveling with just your mom today?”
Then he turned to me and asked me to verify my son’s middle name and DOB. He was looking to see how quickly I responded, kind of like when a bouncer at a nightclub questions if the ID you forked over really is yours.
Mind you that process was rather quick and, of course, the questioning of both the child and parent stems from good intentions to verify the relationship between the two.
The UK Home Office tweeted about this process not too long ago.
Bottom Line
Sadly, parental kidnapping, abduction and child trafficking are very real threats in the world we live in. So, if you’re traveling internationally with a child — even your own — and you don’t share the same last name, you'll have to come with extra documentation and be prepared to spend some extra time at the airport in some cases. Though it may seem like a hassle, it serves an important purpose.
Even if you're just traveling domestically, if you think you may run into issues at security or at the check-in counter, it may be wise to bring along a copy of the child's birth certificate/adoption papers/legal guardianship documents and a generic consent form just for the extra peace of mind. Having a copy of those documents not only works as an ID that shows proof of age, but it also proves your relationship to the child, especially if your last names differ.
What have your experiences been like when traveling with kids who don't share your last name?
Angelina Aucello covers family travel for TPG and writes the popular blog, Angelina Travels. Follow along with all her travel adventures on Twitter and Instagram.
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- Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
- Earn 3X Membership Rewards® points per dollar spent on flights booked directly with airlines or on AmexTravel.com.
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- $120 Uber Cash on Gold: Add your Gold Card to your Uber account and get $10 in Uber Cash each month to use on orders and rides in the U.S. when you select an American Express Card for your transaction. That’s up to $120 Uber Cash annually. Plus, after using your Uber Cash, use your Card to earn 4X Membership Rewards® points for Uber Eats purchases made with restaurants or U.S. supermarkets. Point caps and terms apply.
- $84 Dunkin' Credit: With the $84 Dunkin' Credit, you can earn up to $7 in monthly statement credits after you enroll and pay with the American Express® Gold Card at U.S. Dunkin' locations. Enrollment is required to receive this benefit.
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| 4X | Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year. |
| 4X | Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year. |
| 3X | Earn 3X Membership Rewards® points per dollar spent on flights booked directly with airlines or on AmexTravel.com. |
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Why We Chose It
There’s a lot to love about the Amex Gold. It’s a fan favorite thanks to its fantastic bonus-earning rates at restaurants worldwide and at U.S. supermarkets. If you’re hitting the skies soon, you’ll also earn bonus Membership Rewards points on travel. Paired with up to $120 in Uber Cash annually (for U.S. Uber rides or Uber Eats orders, card must be added to Uber app and you can redeem with any Amex card), up to $120 in annual dining statement credits to be used with eligible partners, an up to $84 Dunkin’ credit each year at U.S. Dunkin Donuts and an up to $100 Resy credit annually, there’s no reason that foodies shouldn’t add the Amex Gold to their wallet. These benefits alone are worth more than $400, which offsets the $325 annual fee on the Amex Gold card. Enrollment is required for select benefits. (Partner offer)Pros
- 4 points per dollar spent on dining at restaurants worldwide and U.S. supermarkets (on the first $50,000 in purchases per calendar year; then 1 point per dollar spent thereafter and $25,000 in purchases per calendar year; then 1 point per dollar spent thereafter, respectively)
- 3 points per dollar spent on flights booked directly with the airline or with amextravel.com
- Packed with credits foodies will enjoy
- Solid welcome bonus
Cons
- Not as useful for those living outside the U.S.
- Some may have trouble using Uber and other dining credits
- You may be eligible for as high as 100,000 Membership Rewards® Points after you spend $6,000 in eligible purchases on your new Card in your first 6 months of Card Membership. Welcome offers vary and you may not be eligible for an offer. Apply to know if you’re approved and find out your exact welcome offer amount – all with no credit score impact. If you’re approved and choose to accept the Card, your score may be impacted.
- Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
- Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
- Earn 3X Membership Rewards® points per dollar spent on flights booked directly with airlines or on AmexTravel.com.
- Earn 2X Membership Rewards® points per dollar spent on prepaid hotels and other eligible purchases booked on AmexTravel.com.
- Earn 1X Membership Rewards® point per dollar spent on all other eligible purchases.
- $120 Uber Cash on Gold: Add your Gold Card to your Uber account and get $10 in Uber Cash each month to use on orders and rides in the U.S. when you select an American Express Card for your transaction. That’s up to $120 Uber Cash annually. Plus, after using your Uber Cash, use your Card to earn 4X Membership Rewards® points for Uber Eats purchases made with restaurants or U.S. supermarkets. Point caps and terms apply.
- $84 Dunkin' Credit: With the $84 Dunkin' Credit, you can earn up to $7 in monthly statement credits after you enroll and pay with the American Express® Gold Card at U.S. Dunkin' locations. Enrollment is required to receive this benefit.
- $100 Resy Credit: Get up to $100 in statement credits each calendar year after you pay with the American Express® Gold Card to dine at U.S. Resy restaurants or make other eligible Resy purchases. That's up to $50 in statement credits semi-annually. Enrollment required.
- $120 Dining Credit: Satisfy your cravings, sweet or savory, with the $120 Dining Credit. Earn up to $10 in statement credits monthly when you pay with the American Express® Gold Card at Grubhub, The Cheesecake Factory, Goldbelly, Wine.com, and Five Guys. Enrollment required.
- Explore over 1,000 upscale hotels worldwide with The Hotel Collection and receive a $100 credit towards eligible charges* with every booking of two nights or more through AmexTravel.com. *Eligible charges vary by property.
- No Foreign Transaction Fees.
- Annual Fee is $325.
- Terms Apply.

