We are returning to Bali for about 3wks, but have to sneak it in between this baby being born (due late July) & Indah turning 2 (20th Sept. So Bubs will be about 4ish wks when heading over & 7ish when coming back....
I have travelled O/S plenty of times alone with DD#1 from 9wks of age & it was really easy..

Good Luck although planning around those dates as such... just so you know you cant always plan it to fit in, babies come when they want too... So in our case if bubs is late we may just have to go after Indah is 2 & therefore pay for her airfare!!! YUCKO!