Have you got a baby carrier Prama? I always found Darcy was happiest in one while we wandered around.
I always feed on take off/ladnding if I can manage it, otherwise have a dummy ready. They can't pop their ears like we can and the sucking helps - though I know girls whose bubs have puked on takeoff after a feed, so I guess it's a trail and error thing.
...hmm lots of toys and books in the handbag/nappybag. Even though he's little he will get bored and grizzly looking at the same wall for ages at a time.