At just past two months, our little guy was an amazing airplane passenger!
First, he exploded out his diaper just ten minutes before we left for the airport. What awesome timing! We were so thankful to not have to deal with that in the car, airport, or plane.
Second, he either slept, ate, or smiled all the way to our destination! He fell asleep on the way to the airport and didn't wake up until I was putting him back in his carseat AFTER making it through security. Then he was all smiles after he ate, enjoying looking out the windows at all the airplanes and the little vehicles zooming around below. (By the way, I have never loved the rocking chairs in Logan more than now! I am convinced a mother was involved in adding those to the airport.) He fell asleep again in the Bjorn as Mom and I ate and continued to wait for our delayed flight. He ate peacefully during take-off and slept almost three hours during the flight!
Only when we arrived and were changing his diaper in the airport before feeding him did he lose control for a little while. And I don't blame him - he was hungry! After that feeding (at 11:00pm), he talked to his Grandma (while I took FOREVER installing his carseat) and then slept the entire way to my parents' home (2 hours away), straight through being transferred from carseat to swaddler to crib, until 4:30am. What a champ!
So now our wee lad has experienced a plane, trains (if the T counts), and automobiles. He's a seasoned traveler.