My thank for @askyukimewtwo for the awesome picture what she did for me.

Me have seen you need a way to travel with all to Alola

I thought me sending my big Brother to transport Alakazam and Mewtwo.

He will take you to alola and return later if you like, but he can not stay. He can not take his younger siblings out of sight for too long.

He is big enough to carry yuki too, but for three it would be a bit tight. and he cant used mega form to get a bit bigger for more place.

Sky can break the sound barrier. But you should make your thoughts about the passengers otherwise it could be painful for them. If Minami and Higashi still can't, give him a tow rope then he pulls them behind him he makes with his small siblings just like that.