Either way won’t cost you anything — all U.S. airlines and most international ones allow them on board free of charge. But other than being the victim of kiddie projectile vomiting, nothing can wreck your trip more effectively than finding your car seat shredded from its time in the hold. The key to avoiding that fate is to invest in a durable, solid car seat travel bag that keeps it safe from scratches, dents, water damage, and other nastiness. Make sure you pick a model that fits your specific car seat brand (they generally fit all the major ones, but read the fine print for any exceptions when it comes to more niche brands). Padded straps make hauling the bags around easier, and some of them even have wheels, if you need that extra convenience. If you want options, get a car seat travel bag that lets you carry it around multiple ways, whether by toting it or strapping it on your back. Every product on Fatherly is independently selected by our editors, writers, and experts. If you click a link on our site and buy something, we may earn an affiliate commission.