Puppy flying and other questions?

Well my puppy is turning 8 weeks on the 23rd and he is coming from Sydney and flying to Canberra, it will be a 55 minute fly but im just wondering will he be okay? he is a mix between a shihtzu and a Chihuahua. Has anyone else ever done this? Is there something I should and shouldn't do when he arrives? Like don't give him food straight away? Go for a walk with him? Give him water? Also my dog's hair is weird his white hair is growing faster then his black hair. His healthy because he has been to the vet recently im just curious will it be like that forever or will it change? Thanks!