I had similar nightmares about my ASD son's first plane trip (last April...he was 4.5). He is high functioning and verbal, but he has some pretty extreme anxiety about new situations. We talked about it a lot, I bought a dvd that he was not interested in. I explained about the whole process by using references to his daily life:
1. Checking in ("We have to wait in line and give out bags to the person so they can put it on the plane. The line is like waiting in line at Target.")
2. Security checkpoint ("We have to put all our things, EVEN OUR SHOES, onto the little belt. It's just like the belt at the supermarket! They have to scan our things just like at the supermarket. We have to follow directions very carefully, so you will have to use your ears to listen to what I tell you.")
3. While waiting for the plane to board: ("It's just like when we have to wait at the doctor's office. Then, when it's our turn, we will get on the plane. While we wait, we can buy a snack for the plane (water and pretzels and gummies) and we can shop in the stores. It's just like a mall! We'll use the bathroom before we get on the plane.")
This worked wonders. He was so enthralled by the whole experience that he was an angel. Once we got on the plane, he sat down (window seat) with his prized HUGE stuffed dog Patrick (REALLY can't underestimate the value of a "friend" for a new experience), and spent the flight quietly looking out the window at the clouds, with Patrick to keep him company. He never even touched the toys or books we brought. His favorite part of the flight was "snack time", when he got to order some juice from the stewardess ("It's just like at a restaurant!"). He ate his snack that we purchased in the airport concourse.
I could tell he was a little scared, but his stuffed dog really helped keep him "centered". That dog was also essential to being comfortable in the hotel room, as he sleeps with him every night at home, and it made the transition easier for him.
So, that basically sums it up. It went MUCH smoother than I planned. We will be flying to FL in March, and I am anxious again, since it's a 6 hour trip. Our first flight was only an hour.
