You could fly to SIN and on to DPS too.
So, I guess on UA metal to either BKK or SIN, then connect to TG, Air Asia, Silk Air, etc to places like HKT or DPS.
But, I have to ask you this question.
Do you really want to travel half way around the world with 4 to 6 month old son/daughter?
Otherwise, somewhere in the Caribbean wouldn't be nicer?