The Baby B'Air is not FAA approved & flight attendants could tell you it's not allowed.... If I were you I'd bring the SS1 just in case -- it can be installed on the plane without the base, so it doesn't seem like a huge hassle to me to bring considering that I'd rather have baby in a carseat even if there aren't any seatbelts rather than simply held against my chest for my body weight to possibly squish baby in a crash
I'd also have a Maya wrap sling + a CARES for your son
if he fits or maybe still a lightweight
convertible with Gogokidz (because then it's like a stroller)
