Toddler flying tips....help!

Hey everyone! My husband and I are getting ready to sell our home and move cross country. I will be flying to our new home with my kiddo who will be roughly 17 months old at that point. It will be about a seven hour flight and I’m super nervous about it. 🥴 I don’t want to be that mom with a screaming baby the whole flight. Lol

Does anyone have any tips/tricks/ideas to share? Is it possible to buy her a seat and either have her ride in that or bring a carseat? It seems insane to have her in my lap that entire time!

What about packing snacks/tots/etc? Just give me all your thoughts, please. ❤️