Is it cabin approved?
Hey, Iza,
No, this is not a travel stroller and will not work as cabin luggage, as the dimensions after folding are larger. You can either check it in or, depending on which airline you travel with, use the option of "baby's luggage" where it normally works so that the stewards take it from you when boarding, and return it to you right after you get off (you need to check if this option is applicable for your airline, though).
Your -very berry- Eli.