Safety 1st Onboard 35 Air Review – Proven protection in 2024Safety 1st onBoard 35 Air 360 Infant Car Seat Review
The car flipped over and over while the 4-month-old baby…

It was like any ordinary day for this mom. Then the accident happened. The car has rolled over eight to ten times while the four-month-old baby was sitting in the Safety 1st car seat. Finally, the car settled on the side.

Miracles do happen, and it happened that day. There were no injuries what so ever.


The deadliest accidents happen when the car flips over. Luckily the 4-month-old was in this car seat. It offers 360 protection. While all car seats have front and rear protection and many have side protection, only a handful of them offers 360.

Their guardian angel was sure with them that day. This is why it’s important to get the best protection possible because you will never know when something happens. Also, when it comes to child safety, it’s not the place you save money on.

Before we get any further, let me give you a quick preview. This car seat has mega padding. I mean, I haven’t seen a more padded car seat like this. It comes with five layers of safety. It’s for infants and toddlers. Front and rear-facing is possible.

If you want to enjoy extended rear-facing, this allows you to do it. And finally, it can be attached to strollers so you will have a full travel system.

Let’s get this Safety 1st Onboard 35 Air review started. If you stick with me until the end, I will tell you the pros/cons. Some of them are unexpected, to say the least.

Who is the Safety 1st Onboard 35 Air 360 Infant Car Seat?

This car seat is for parents who are conscious about security. It not just protects from the front rear and side but from the most deadliest crashes which are the roll overs.

What can the Safety 1st Onboard 35 Air car seat do for you?

There’s one major problem with car seats today. They are a real pain to get it installed. Well, guess what. Safety 1st is a real game-changer in this field. It’s quick and effortless to get it mounted.

If you have seen one car seat, you have seen them all. This one is different; it looks nice without going over the top. I loved the material. The thing is many other brands try to cut costs an at this corner and use some rough, scratchy material. I get the Goosebumps if I think about putting my little one next to sandpaper material.

That’s not the case with this Onboard car seat. The material is soft and comfortable.

If you don’t mind buying different car seats for every development stage, this will be a good fit for you. Plus, you can mount it to strollers, and you’ll have a travel system. Now there’s a trick to get these seats on different brand’s strollers. Sometimes it fits, and other times, you will need an adapter.

They weren’t joking about testing the seat while the car rolls over. As the parent who shares the starter story without this seat, only the worse could’ve happened.

Safety 1st Onboard 35 Air shortcomings

Every car seat has flaws. It’s my civic duty to share them with you. By knowing everything, you will have the full picture. Thus you will avoid unwanted surprises. The same thing goes with this Safety 1st car seat. Let’s see if they are a deal-breaker for you.

All that mega padding comes at a cost. If you have an infant, they will be so snug that sweating can’t be avoided. Babies are warm to hot when you remove them from the seat. This is not an issue when the weather is cold or mild. As they grow, you can remove the padding, and they will have more breathing room.

Many parents have reported issues with the canopy. It slides down and won’t stay in place.

Since this car seat supports extended rear-facing, there’s not much room left for the front passengers. If you don’t max out the front seats, then there’s nothing to worry about.

Last but not least, it’s loud when locking in. It happened countless times that the baby woke up while securing in the car.

These would be the flaws of this car seat. If you’re still with me, let’s continue to the next chapter.

How To Get The Most Out Of Safety 1st Onboard 35 Air 360 Infant Car Seat?

The most important thing to remember about car seats is the right installation. If you don’t get it right, it doesn’t offer the perfect protection. A recent survey shows that 75% of car seats are installed in a bad way. This is not the case with the Safety 1st car seats. It’s so easy that you can’t get it wrong.

If you want to be extra safe, then ask for the opinion of a certified professional.

Secondly, the perfect position matters as well. The safest place for your child to ride is in the middle. Now I get that it’s not always possible, so then opt for the second safest place which is behind the driver. Do remember that with the Safety 1st Onboard 35, you will need a lot of room for extended rear-facing mode.

Once all this done and settled, you can get to the size adjustments. You can adjust the harness height into 4 positions and the buckle location in 3 positions. Last but not least, you can adjust the base into one of 5 positions.
Safety 1st onBoard 35 Air 360 Infant Car Seat Review

  • Safe and sturdy, so your little one is protected in any crash
  • They went above and beyond with the mega padding
  • The material is nice and soft and not scratchy
  • Canopy doesn’t remain fixed it slides down
  • It takes up a lot of space not much space left for the front row

Conclusion for the Safety 1st Onboard 35 Air Review

As you can see, this car seat has it all. I’ve reviewed some tanks like car seats, but this managed to outdo them all. That rollover protection is out of this world. And only a handful of car seats have that option.

That mega padding gives a lot of comfort and safety as well though it has a drawback that it will keep your little one warm or even hot.

We have reached the end of the Safety 1st Onboard 35 Air review. I hope you got some valuable info about this car seat. Now, if this is the right fit for your family, then get it while stocks are in supply.

If you have other car seat ideas for me to review, let me know. If there’s enough interest, I will do it. Leave a comment below.

Catch you next time.

Frequently Asked Questions (FAQ):

What is the weight limit for the Safety 1st onboard air infant car seat?

For this infant car seat the weight limit is 35 pounds and the weight range is 4-35 pounds. This means that the lower weight limit is 4 pounds.

What kind of safety features does the Onboard Air infant car seat have?

This infant car seat comes with the Air protect feature. As you know front and rear impact crash protection is standard. Safety 1st went two steps ahead. It comes with side impact protection and thanks to the Air protect it has rollover protection as well. The side impact protection is built into the air protect system. It’s one of the safest seats out there it has passed the federal safety standards and exceeded the european rollover standard. The seat structure is filled with race car foam. It has passed all crash testing.

How can you install this Safety 1st onboard air 360 infant seat?

Since it’s an infant seat you can install it both with or without the base. The only difference is that without the base the base you can only use the vehicle seat belt install. Make sure you remove the latches from the latch storage. Installing without the base is great for a second car. It’s easy to install and Safety 1st is known for its ease of use. Before you get started make sure you read the manual. Also for more elevation you can use the pool noodle. Typically these car seats can be installed with the seat belt or the shoulder belt. If you’re doing the install without the base than the seat belt is your only option. The latch anchors (latch straps) are the fastest and most comfortable option.  Once the latch anchors click you pull on the latch straps and you’re done. The latch anchors tap out at 65 pounds after that you can only use the seat belt or the lap belt. With the seat belt you have to feed it through the belt path. There are different choices when it comes to the belt path. The 5 point harness car seat system will keep your little one safe.

Are these Safety 1st infant car seats crash tested?

Yes these infant car seats are crash tested. Otherwise they can’t be sold. It has passed all crash testing.

What are the key features for the Onboard Air 360 infant car seat?

For this car seat there are many. Here are the most important ones: air protect, side impact protection, gcell hx, adjustable crotch strap, more than enough leg room. We can’t forget the ease of use. The carry curve handle has an ergonomic design for easy carry. The seat structure is filled with race car foam. The recline angle provides good comfort. The seat cover cover is removable. And the seat cover is machine washable. Being machine washable means that you have luxury in time. The carry comfort grip is easy to handle. There’s a built in cushioning system. For extra angel you can use a pool noodle. The buckle locations are easy to find. The chest clip is adjustable.

What is the GCell HX with the Safety 1st onboard air 360?

Safety 1st calls the seat pad GCell HX. It’s a patented foam by Safety 1st and this provides the most comfort for any baby.

How long can you use the infant insert with this Safety 1st car seat?

Typically the infant insert can be used up to 11 pounds. Now depending on your little one’s body type the infant insert can be adjusted. The infant inserts (infant insert) comes with the package. It’s not the lightest car seat when it comes to seat weight. The carrier seat weight is 9.3 pounds. The harness heights are set to 32 inches. The height adjustments can be done as your child grows. These 32 inches are quite generous. Other features to check out: harness straps, harness system, shoulder straps.

Last Updated on November 7, 2023 by Brian Beasley

Written by Linda Reid

Hey there, I'm Linda, a mom of three cool kids. I've tried so many car seats, you could call me a "Car Seat Detective." Searching for the perfect car seat can feel like finding a needle in a haystack, but don't worry! I've committed to researching and reviewing car seats that are super safe, cozy, and great for growing kids. Together, we'll find the perfect car seat that keeps your child safe and cozy, and makes you feel like a super-parent!