
Cosco Kids - MightyFit LX Convertible Car Seat
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Based on 1 year's data from Feb 18, 2026 How it works
If you're out of the infant stage the Next might be too small. The luggage carrier works with basically any car seat. We used it with the Cosco Mighty Fit which is also super super light weight and easy to install in rental cars/Ubers, and then the carrier folds up into the size of a large book
He probably won’t fit in the doona. Infant seats can not rear face, even on a plane. I would bring a cosco seat and use it on the plane. That’s what we did when we took our 18mo to Europe. She did end up being held for sleep but she was in her seat otherwise. Good luck!
We used it rear facing. Easier to keep her from kicking the seat in front. Movies did not hold her attention at that age so we didn’t attempt it. We have since used it forward facing on planes as well.
Cosco until big/mature enough for RideSafer.
If the child is over two, you’re buying a seat for them regardless, correct? The only negative I ever encountered was flying with my toddler alone meant I was responsible for getting them and the seat onto the plane myself. Both can be heavy and unruly at times. I loved having their seats on the plane though. It was just like the car for them, no trying to get down, or wanting to be held. And they could easily sleep. If you have a helper, even better. Plus you’ll have a car seat where you’re going, and it won’t get broken or lost from checking it. If you can buy a cheap lightweight seat, it’ll help a bunch. We had a cosco seat from Walmart we only used for travel. I think it weighed less than 10 lbs.
I’d bring it. I have kids here, and the subway can be hard…no working elevators or filthy ones. Lots of stairs with bad weather and tired kid. Taxis also go super fast from the airport to the city. The car services might have car seats, but there’s no guarantees about their condition, size, installation and availability. I have a cosco for when I take my kids out…it sits (awkwardly) right on my travel stroller.
The best travel seats are not what I'd consider the best for every day use. Cosco seats from Walmart are lightweight and super affordable (around $60) so if it gets damaged on your trip it's not a big loss. Our fav daily seat is the Britax One4Life which has 50 lb rear facing limit, padding at the crotch strap, and super easy seatbelt install!
We still do a Cosco car seat because it's light and transportable. When they grow out of that it will be a CARES harness.
Cosco car seat. Literally lighter than my diaper bag. While strolling through the airport put the seat in the stroller. I'm assuming you have a double?
Where are you going that you don't need seats at your destination? We bought a Cosco brand seat for traveling. Much more lightweight and easy to install than our usual car seats. We used it on the plane and in our rental car while on vacation.
Nope not missing anything 😅good news is your next car seats will last you much, much longer! I’d get four extend2fits. We love extend2fit. Easy to install and lasts forever, rear faces up to 50lbs while most are 40. My oldest is 4 and no plans to move him from that seat anytime soon. Coscos are great for air travel with as they’re so light but I think they’re less comfortable and don’t grow with your children as much. Also a total pain to install. My husband has a graco slim in his that’s lighter and slimmer and very similar though it stops rear facing at 40
We had some success with the graco contender go The cosco one is fine, it is lighter and dirt cheap but it has no cushion to it so it is not comfortable for long flights
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