Route notes
Why this routing works
This routing groups three Southeast Asia stops into a clean westbound-style sequence from Denver: first a longer stay in Denpasar Bali, then a shorter midpoint stop in Singapore, followed by Hanoi before the return to Denver. The 11/6/8-night split gives the trip a clear structure, with the longest stop first and a balanced final leg back to the US.
As a multi-stop ticket rather than separate one-way purchases, the itinerary keeps the order fixed while simplifying the long-haul planning across multiple countries. That structure is especially useful on a 4-week trip, where timing between stops matters as much as the overall route.
A June departure fits the stated Apr-Jun season window and spreads the month across three stopovers without making the schedule overly compressed.