Kavitha, I would suggest you to carry ready to feed formula bottles which comes in 2or 3oz sizes instead of powder..it wil be easy for you if in case you need to feed baby in hurry..like in transit or when goin thru immigration. and keep the bags minimal and light weight..
Hi Kavitha, Pretty much everything has been covered but one small thing I would want to add is Nasal drops/Saline drops and bulb syringe. I travelled with my 4 month old couple of months back and he got a very bad cold because of high AC. Both his nostrils got blocked and he could not breath properly so with this in handy I immediately cleared it and later he was fine throughout the journey.
Thank you Ramya for your advice.. today only i bought saline drops. i thought i can carry it in my check in bag. But after seeing your msg i kept it in my diaper bag (bulb syringe also). Thank you so much for your post.