J.G.
We traveled quite a bit with our son while he was between 1 year and 3 years. We've slowed down a little bit since we've moved closer to family. He was fine to travel with. We tried to time flights with naps, but bought a DVD player which I HIGHLY recommend. Lots of crackers and snacks on the plane. Also, we did better with shorter flights, even though it meant having to go through more airports. That way he wasn't stuck in the seat for as long. We took our carseat on the plane...that was a godsend...he couldn't get out and he could see out the window. Once we got to our destinations, he was fine. Maybe a little more wound up from sitting so long. Our first major trip was to WDW and he did great except for one day close to the end of the vacation...he was just exhausted. One thing I did learn, have a plan, but be very flexible. For example...we planned on having naps every afternoon, but he was just so excited, he couldn't calm down that much, so we just kept going! Good luck! I think you'll be fine. Don't forget passports though! Even the little one has to have one if you fly!