helga do it, do it, do it!
We flew long haul when dc1 was just 12mo, it's a bit pass the baby etc with meals and loo visits but you can walk up and down the aisle and some airlines do bassinet seats so you have somewhere to put baby.
Out of our 10ish hour flight over half the time DD was asleep and the rest didn't seem too bad split between us.
On our flight back we were with lots of my family rather than on our own and baby cried for a bit as overtired - cue the man sat next to my DM bitching about babies on planes.... after she was finished tearing him a new one he had a blanket over his head for the rest of the flight "sleeping"
Protective grandma 
control I've just stuck to level one as am soooo unfit.
Have stuck to routines today and eaten a nice risotto for tea