Our baby had done 16 flights by 1 year old. Both short and long. We've - touch wood - not had one bad flight.
We flew Emirates when he was 6 months old UK to HongKong then from Bali to UK. They gave us a bassinet which plugged into the bulkhead. Depends how fussy the cabin crew are as to whether they'll give you one for her though at one year old. They were nice to fly with, the cabin crew were attentive.
He ate the food off our trays, there's always a bread bun of some sort and pot of fruit chunks. You can just ask if there's any adult meals left for the bits off the tray like the yogurt etc. Sometimes there's crackers and soft cheese. We always take brioche buns, sultanas, a banana, those squished fruit bar things, flapjack, all snacky foods but filling.
They don't keep milk as such so make sure if she has cows milk that you take some with you. Those pre-made formula cartons are easier and you can buy them airside at the airport.
My little one tends to fly in baby grows or rompers. Comfortable and lightweight. Take a few spares. A spare outfit for you. I learn't the hard way after a soft cheese and tubulence fiasco. I smelt of cheesy vomit for the remaining 12 hours of a journey. If your in the bulkhead then in the little mesh basket keep a packet of wipes, a nappy, tippee cup and ipad handy.
We don't watch cartoons at home but he'll sit and watch them on a flight as it's a bit of a novelty. So i suggest a tablet or Ipad. Favourite book. Few small toys.
We always take his sleeping bag wherever we go and his muslin cloths. They are his security objects.
Try to stick loosely to routine too. If it's a night flight then do wash, teeth, clean jammies, snuggle up, bottle etc just to keep the routine going.
Also be the last the get ON the plane and the first to get OFF!