Over 20 year's of flying to distant hunting area's, this is what I learned the hard way!
1. No tight schedules - get there a day early if possible, so if something doesn't show up you can usually have time to track it down.
2. Bino's, spotter, change of clothes, meds if needed in your carry on.
3. Get one of those rolling duffel bags and strap your hard case on top of it for ease of transport thru the airport
4. Meat - Donate it to the local's. Lost 300 lbs of prime moose meat to spoilage, didn't leave a good taste in my mouth!!!!!