What worked for me. Get a backpack/type harnis/leash. I got the one from Target that looked like a bear. I put it on him starting days before the trip, to get him used to it. (it looking like a dora backpack helped) This way, when you are checking in and going through all the lines, you can hold onto him, and he can move around. Oh, also, get a cabeener (climbing hook) to latch onto your beltbuckle, and the handle of the leash. This way, YOU have free hands.
Take the car seat, so you can strap that into the plane. Take a backpack with snacks (non-messy) and small soft toys. The small magnadoodle worked wonders. I did not have to bother with dropped crayons (it is a game to them)
Ask the pediatrician about sleepy kids medicine for the trip. THey can tell you what medicine, and the dosage. Check it out before the trip to make sure it makes him sleep, and not
hyper.
Give him the medicine BEFORE you leave for the airport. (enough time for it to kick in) One trip, I gave it to mine late... it did not kick in until AFTER the trip was over.
As for outbursts, keep yourself calm. Talk in low soothing sounds. Hold and rock gently, sing quietly. If it is a mostly empty flight, they will let you move to an area with more unused seats.
good luck- it will be great.
Oh, on a more comedic side. When traveling with babys on formula and cereal.....
I had to travel cross country w an infant. I did not have enough room in my bags for the formula and cereals to stay in their boxes. I was NOT about to leave them behind, a little is different but I had just bought them that week. So, I put them in gallon size Ziploc bags, and labeled them.
I checked my bags at the curb. When we got home and were unpacking. I noticed a LOT of the clothes were black (like the ground around the check in). I then noticed the bags were not flat like I packed them.
Apparently when the bags were scanned, it looked like drugs.
I was sooo glad I had labeled them.