You can gate check it. When you check your luggage, ask for a gate check. Sometimes they give it to you, sometimes they make you wait till just before you board.
Wheel your stroller through security (must now fold it & slide it through the scanner). When you are at the end of the passenger connection, just before you actually get on the plane, fold your stroller & leave it. (You'll see others.) They put them in the luggage compartment just before the plane leaves. When you exit the plane, it will be waiting for you. Where you left it, only in another airport.
It's great for keeping your carryon's ect & your child(ren) will be more comfortable. You don't have to worry about them running away.