The only way one could travel to many countries in one year was a DIY tour. We booked our own airline tickets and hotel rooms online so we could save $$$ instead of just depending on a travel company to book everything for us. Another reason was the flexibility of the tour, we could choose what we wanted to see and do, instead of a fixed itinenary set by the travel comapny.
We are heading to Hanoi very soon but this trip my sister is coming with us, so the airfare below is for a group of three by Tiger Airlines. It could be cheaper if we booked months ahead but was a last minute decision to go on this tour.
Hope everything is in order and we would be in Hanoi very soon.