Bird Carrier, Portable Small Bird Parrot Parakeet Carrier with Standing Perch and Stainless Steel Tray, Side Access Window Collapsible (Green, Clear Windows)

I just use this soft-sided bird carrier from Amazon. I've used it for car trips to the vet and bird sitter's house, and the budgies don't seem to mind. They were softly singing and murmuring in it during our last 1-hour car trip. The smaller space and solid walls are kinda nice because if they get startled and start freaking out for some reason, there's not much that can hurt them. You can also cover the carrier with a small towel to calm them down and block their view if needed. https://a.co/d/086Wy821