Airplane tips

Hey all! About to go on our first plane ride with our almost 13 month old. It’s only a few hours long, but I am extremely nervous since he now just wants to walk everywhere and has recently started yelling if he doesn’t get his way sometimes bordering tantrums (flinging head back and falling backward). I will take any and all tips anyone is willing to share to make this plane ride not be a nightmare for us and everyone around us! Oh and I’m pregnant so my patience is low and exhaustion up. Please and thank you ☺️