Central Asia Travel (Spring)

Hi! Need tips and recommendation, please. I booked a trip to Almaty, Kazakhstan for last week of March to first week of April and I’m also planning to include Uzbekistan in my itinerary too.

1. Not sure what to pack since transition sya ng winter to spring
2. Itinerary tips
3. Long haul flight tips (my first time flying for more than 4 hours)

Any tips and recos are greatly appreciated. Thank you!