I’m just kind of laughing at the idea of asking for assistance just because you have ASD. I know that it is there for the people who need it, but not everyone with autism needs assistance. Some of us just need to think through the steps of new procedures so we can be prepared.
op, if security were not an issue, I would go for something really sturdy for traversing an airport. However for security, I think my first choice would be a simple sling. I was going to say a ring sling, but the metal ring will set off the scanner so they won’t be able to have you leave that on if they are feeling generous. I’m not sure what to suggest in that regard.
what I would do is bring a small blanket that is plasticky on one side and soft on the other. You are going to have to set the baby down during your travels. It is unavoidable. So plan ahead for it and bring something with obvious sides that you can lay baby down on.
Put luggage on belt. lay baby on blanket. Take off sling. Drop sling in a bin. Pick up baby. Drop blanket in a bin. Walk through scanner. Pick up blanket. Lay baby down. Pick up sling and get situated. Pick up baby. Retrieve luggage.
you can use wipes to clean off the plasticy side of the blanket before putting back in your bag.
if there is a family line, use that. Don’t worry about taking a long time. It is going to take a long time. Just own it and arrive early. Tuck yourself to the side and other people will move past you.