Are the scanners loud, bright or in any way high on the sensory input? She doesn't do loud noises well without prep.
There are many, many people, and it's at a busy airport. Is there any way you could go on a field trip to the airport and see the non-secure side? At our airport (Seatac) you could have a nice time there having a little food, a hot chocolate, stand around, watching TSA. I've done it when picking up DH, actually, when he's making his way through the airport.
Explain that it will be noisy, and there will be a lot of people rushing around, but they don't need to rush around too...they can take their time and not get worried.
Yes. And I think the "rush around" part is so important. WE don't need to rush (especially if we've given ourselves plenty of time). We don't want to be in the way of anyone, but we don't have to rush or be frantic.
We'll keep her in ear protection as much as possible.
Good idea. If foam earplugs work those can be nice. If they ask to have them taken out, then do so, but I'd go into it with the earplugs in and see what happens.
And for *you*, OP (and others with questions), give yourselves LOTS of time. Have activities for once you're beyond security; find out what restaurants there might be open, have books, etc. That way if you get through TSA easily and quickly, you're not bored. And while going through security, keep a smile on your face. Dress simply (and wear SOCKS!!!!! I keep forgetting to and it's gross!!!!!), pay attention to what's going on around you. Perhaps have one parent focused on what's going on around you, and one parent focused on the kids so nothing gets missed. Communicate with the other parent, don't assume anything. Count people, count bags. (know how many bags you have!!!) Lots of communication. Make things as easy as possible for the grownups (watches, big jewelry, etc already in the carryon, soft fabrics, easy-off shoes, etc) so that as much attention can be paid to the TSA people and the kids.
There are only 3 of us and I'm constantly counting things while traveling. Bags, coats, people, shoes, etc.