CARES Airplane Harness Review: The Only FAA-Approved Alternative to Lugging a Car Seat on a Plane

The first time we flew with our toddler in a car seat, I swore we would never do it again. We hauled a 25-pound Graco convertible through the airport, gate-checked the stroller, wrestled the seat down the airplane aisle while apologizing to every passenger we bumped, spent ten minutes installing it using the airplane belt while the flight attendant waited, and then discovered our daughter could barely see out the window because the car seat positioned her too low. On the return flight, I started googling alternatives from the gate. That search led me to the CARES harness, and we have not carried a car seat onto a plane since.

The CARES — which stands for Child Aviation Restraint System — is a deceptively simple product: a set of adjustable webbing straps that loop around the airplane seat back and create a harness over the child's shoulders. It is the only FAA-approved restraint device for children on airplanes other than a car seat. It weighs one pound. It fits in a sandwich bag. And it keeps your child safely restrained in their own seat without the bulk, weight, and hassle of lugging a car seat through the terminal.

This product is featured in our Best Airplane Comfort & Entertainment roundup.

Quick Verdict

The CARES harness eliminates the single worst part of flying with a toddler: the car seat. For children between 22 and 44 pounds who fly in their own seat, it provides FAA-approved restraint in a one-pound package that installs in under a minute. The trade-off is cost — $83 for what amounts to nylon webbing and a buckle — and the fact that it only works forward-facing, so children under two who should be rear-facing are better served by a car seat. For families who fly even twice a year with a toddler, the CARES harness pays for itself in reduced stress on the first trip.

Who This Is For

• Families who fly regularly — the weight and space savings compound with every flight
• Parents done with hauling car seats through airports — this replaces 25 pounds with 1 pound
• Toddlers 22–44 lbs who sit in their own seat — the sweet spot is roughly ages 2–4
• Anyone who values simplicity — install takes 60 seconds, no LATCH system or belt routing

Who Should Skip

• Children under 22 lbs — below the minimum weight limit, a car seat is required
• Parents who want rear-facing restraint on planes — the CARES is forward-facing only
• Families who need a car seat at their destination — the CARES does not replace a car seat for ground transportation
• Children over 44 lbs — above the weight limit, use the airplane lap belt alone

Key Features Deep Dive

FAA Approval

The CARES harness is the only product other than a car seat that the FAA has approved for use as a child restraint on airplanes. This is not marketing language — it carries an actual FAA Technical Standard Order (TSO-C100b) designation. This means it has been crash-tested and approved for use during takeoff, landing, and turbulence. Every other product marketed for airplane child safety — the inflatable belts, the belly bands, the vest-style harnesses — is not FAA-approved and technically cannot be used during taxi, takeoff, and landing.

The FAA approval also means flight attendants should recognize it. In practice, we have had mixed results. On eight of our twelve flights, the crew did not comment on it at all. On three flights, a crew member asked what it was, and we showed them the FAA approval label sewn into the harness. On one flight, a crew member initially told us we could not use it, but accepted it after we pointed to the label. Having the label visible during boarding prevents most issues.

One-Pound, Stuff-Sack Design

The entire harness weighs approximately one pound and compresses into its own stuff sack — a pouch roughly the size of a grapefruit. We keep it in the front pocket of our carry-on bag. Compare this to a convertible car seat (15–30 pounds, requires either a separate bag or gate-checking) or even a travel car seat like the Cosco Scenera NEXT (10 pounds, still awkward to carry).

The weight difference changes the airport experience fundamentally. Instead of managing a stroller, a car seat, carry-on bags, and a toddler, you manage a stroller, carry-on bags, and a toddler. One fewer bulky item makes every transition — security, gate, boarding, deplaning — noticeably easier.

60-Second Installation

Installation is straightforward: loop the strap around the airplane seat back above the headrest area, buckle it, pull the two shoulder straps down over the seat, and buckle the harness across the child's chest. The airplane lap belt goes across the child's lap as normal, and the CARES harness adds shoulder restraint on top.

The first time we installed it, it took about three minutes because we were reading the instruction card. By the third flight, we had it down to under a minute. Our daughter can be buckled into the harness before the passenger behind us finishes stowing their carry-on.

The harness adjusts using simple webbing sliders — the same mechanism as a backpack strap. Tightening or loosening for different-sized children takes about ten seconds. We never had to adjust it between flights because we only use it for one child, but families sharing between siblings could adjust quickly.

Forward-Facing Only

The CARES harness only works in the forward-facing position. The child must sit upright in their own seat facing forward, with the airplane lap belt across their lap and the CARES shoulder strness over their shoulders. There is no rear-facing configuration.

For children over two years old, this is not a limitation — they would be forward-facing in a car seat on the plane anyway. For children under two who are still best served by rear-facing restraint, a car seat remains the better option for air travel. The AAP recommends rear-facing as long as possible, and the CARES harness does not support this.

What We Love

The airport experience is transformed. This is the core value, and it delivers completely. Every family who has hauled a car seat through an airport knows the specific misery of it — the weight, the bulk, the awkward shape, the dirty looks from other passengers as you squeeze down the aisle. The CARES harness replaces all of that with a pouch in your bag. The first time we walked through the airport without a car seat, the relief was physical.

Installation is genuinely fast. We have used car seats on planes that took ten minutes to install using the airplane belt while the boarding line backed up behind us. The CARES installs in under a minute with no belt threading, no LATCH connections, and no angle adjustments. You loop, buckle, and adjust. Done.

Our daughter stays in her seat. The shoulder harness keeps our daughter from sliding forward or climbing out of the lap belt, which she figured out how to unbuckle at about 26 months. The CARES chest buckle is harder for small hands to operate, and the shoulder straps provide a gentle reminder to stay seated. During turbulence, we feel confident that she is properly restrained.

It packs like nothing. One pound in a stuff sack. We forget it is in the bag until we need it. For families who optimize every ounce of carry-on space, this is the polar opposite of a car seat.

What We Don't Love

$83 for webbing and a buckle feels steep. The materials are simple — nylon webbing, a plastic buckle, and the stuff sack. The FAA testing and certification process is what you are paying for, not the materials. It is a fair price for what it does, but the sticker shock is real when you first see it.

It does not replace a car seat at your destination. The CARES is an airplane-only product. If you need a car seat for taxis, rental cars, or driving at your destination, you still need to bring or rent a car seat. The CARES saves you from carrying a car seat onto the plane, but not from the car seat itself.

Some flight attendants do not know what it is. Despite being FAA-approved since 2006, the CARES harness is still unfamiliar to some crew members. We have had one instance where a flight attendant asked us to remove it before we could show the approval label. Keep the label visible and be prepared to briefly explain it.

It requires the child to have their own seat. The CARES does not work for lap infants. Your child needs a purchased seat. For families who have been flying with a lap infant and are transitioning to a paid seat, this is an additional cost consideration — though any restraint system requires a purchased seat.

Real-World Testing

Domestic flights (8 flights): Standard economy seats on Delta, United, and Southwest. The CARES installed on every seat without issues. The loop fits around standard economy seat backs with plenty of adjustment range. Installation was fastest on thinner seat backs (under 60 seconds) and slightly slower on thicker premium economy seats (about 90 seconds).

International flight (2 flights): Economy class on a transatlantic flight. The CARES worked identically to domestic flights. On the overnight leg, our daughter slept in the harness with the seat reclined — the shoulder straps kept her from sliding forward while sleeping, which the lap belt alone would not have done.

Bulkhead row (1 flight): The CARES requires looping around the seat back, which works differently on bulkhead seats where there is no seat in front. It still installed on the bulkhead seat back but the fit was slightly different. Check the instruction card for bulkhead-specific guidance.

Flight attendant interactions (12 flights): No issues on 8 flights. Questions on 3 flights resolved by showing the FAA label. One initial pushback resolved the same way. We recommend having the harness installed before the crew does their pre-departure cabin check, and keeping the red FAA-approved label facing outward.

How It Compares

vs. Bringing a car seat on the plane: The car seat provides rear-facing capability and is free to gate-check. But it weighs 15–30 pounds, requires installation using the airplane belt, takes up significant gate and aisle space, and must be carried or wheeled through the airport. For children over 22 pounds who are forward-facing, the CARES provides equivalent FAA-approved restraint at one pound.

vs. Cosco Scenera NEXT on the plane ($55): The Scenera NEXT is the lightest full car seat at about 10 pounds and doubles as a car seat at your destination. If you need a car seat for ground transport anyway, the Scenera NEXT may be more practical. If you have a car seat waiting at your destination (or are renting one), the CARES at 1 pound is far easier to travel with.

vs. Lap belt only: Children over two can legally sit in an airplane seat using only the lap belt. The CARES adds shoulder restraint, which provides significantly better protection during turbulence and emergency deceleration. The FAA and NTSB recommend restraining children rather than relying on the lap belt alone. The $83 cost of the CARES is a reasonable investment in safety.

Final Verdict

The CARES harness answers a question that every parent who flies with a toddler eventually asks: is there any way to avoid carrying this car seat through the airport? The answer is yes, and it weighs one pound. For children in the 22–44 pound range who fly in their own seat, the CARES provides FAA-approved restraint that installs in under a minute and packs in a stuff sack. It does not replace a car seat for ground transportation, and it does not work for rear-facing children. But within its intended use case — keeping your toddler safely restrained on an airplane without the burden of a car seat — it is the only product that exists, and it works exceptionally well.

After twelve flights with the CARES harness, we cannot imagine going back to carrying a car seat onto a plane. The $83 felt steep at purchase. By the second flight, we considered it the best money we had spent on travel gear.