It's not perfect, though. The storage space is only so-so compared to other strollers and there's minimal clearance between the basket and the seat, meaning you often have to put larger bags in the storage space before your child is in the seat. And while the stroller is lightweight and very durable in my experience, the seat doesn't have much padding—though my daughter still falls asleep in it all the time.
The Joovy Twin Roo+ is a double frame product that is lightweight, easy to fold, fits almost anywhere, and works with almost any infant car seat combination. With ample under seat storage, and the ability to install the seats facing either side, the focus is on convenience and ease of use with this economical infant car seat carrier. The Joovy Twin Roo+ also has a cheaper price tag that can help you save money in babies' first nine months while you determine what kind of double product will be best in the long run. As a result, you won't be limited to choosing from the few double options that work with two car seats attached. We think this consideration alone makes the Twin Roo+ a no-brainer for parents of twins.
The combination of safety, size, and portability make this a top pick among Best Travel Car Seats. The Diono Radian RXT is narrow enough to fit three across the back seat of most cars–an impossibility with other car seats that meet this higher weight limit (compare with the bulky Britax Regent), and at only 17″ wide you can also use it in airplanes with confidence.
This fun-looking travel system is super affordable and has great prints and patterns that parents seem to love. The well-padded seat on the stroller has multiple recline settings plus a removable large head support pillow that can also be used in the car seat. Parents like the padding and say the car seat straps are easy to buckle. They love the many compartments in the stroller, especially the bottom basket and the covered parent tray.
Let me start by acknowledging the top reason why some parents elect not to bring their children’s car seats when they travel: convenience. Lugging a child safety seat, especially a bulky toddler car seat, through airports and across continents just isn’t as much fun as not taking it, right? (Not nearly as much hassle if you have a lightweight car seat for travel, of course – keep reading for the best carseat for travel for your family.)

The Italian-made Peg Perego Booklet Travel System is a high-end car seat stroller combo. It is a simplistic yet classy design that features everything parents need to keep their child comfortable and safe while on the go. It features the Primo Viaggio 4/35 infant car seat, which scored 9.5 on our list and holds babies from 4 - 35 pounds. The stroller holds babies and children up to 50 pounds. Stroller unfolded dimensions are 38.5” L x 21.5” W x 40.8” H. Car seat dimensions with base are 28.5” L x 17.25” W x 26.5” H.
If your infant will have more passport stamps than a flight crew or you live in a big city where you mostly take public transit check out the Doona car seat stroller combo, the infant car seat that magically becomes a stroller! I haven’t used one in a car but I did get a chance to play with it and I was impressed. Others who have used it say that it lives up to the hype as the best car seat for airplane travel with an infant. Stroll up to the taxi door, retract the handle and wheels, then install as you would any other infant seat. It makes a perfect portable car seat for taxi rides with an infant.
This product is not the right choice if you want a one and done option but plan to jog. It also isn't good for hiking or moving off of paved surfaces for very far. Despite these limitations, it is a great everyday option that works well for travel. We think most parents will love this economical choice that can be used with an infant car seat, full-size product, and lightweight traveler.
Now, what do we like about this travel system? Well, there is the adjustable 5-point harness that comes with shoulder pads. It even has belly pads and a pillow for added comfort and protection. Its extendable canopy also ensures that your kid stays protected from the sun even if you stay outdoors for hours. Also the peek- o- Boo window in the canopy can keep your child amused for a while.
They basically look like two strollers placed side by side, offering each child an equal view of the scenery, as well as the freedom to interact, or in some cases, get in each other's space. The configuration makes room for nifty features, such as reclining backs and adjustable seats. Other models can accept an infant car seat, if not two. Ensure the weight on either side is relatively balanced; otherwise, the stroller could veer to one side. 

I wish I had seen this post a few months ago! Before our recent trip to Costa Rica, we spent forever trying to decide on the best travel carseat option. We knew we wanted to buy our own, as they practically cost us an arm and a leg last time we rented them along with our car rental. We ended up purchasing two Bubblebums, and they were fantastic – small, comfortable, and very portable.