We have flown a couple of times with LO and just seperate the car seat and snap n go stroller and leave them on the cart. Neither have been damaged but I'm wondering if we have just been lucky! Do you use some sort of travel bag for protection, and is it easy it get the car seat and/or stroller in and out of? I have a few flights coming up with just me and LO (planning on wearing her while boarding so will sort of have two hands).