Route notes
Why this routing works
This routing is built as a westbound Pacific circuit from Seattle, starting in Siem Reap, continuing through two Vietnam stops, and finishing in Tokyo before returning to Seattle. Grouping Siem Reap, Ho Chi Minh City, and Da Nang together keeps the Southeast Asia portion contiguous, then uses Tokyo as the final stop on the way back across the Pacific.
With 5 nights in Siem Reap, 2 nights in Ho Chi Minh City, 4 nights in Da Nang, and 5 nights in Tokyo, the trip balances longer stays with one short transit-style city stop. Ho Chi Minh City works here as the briefest segment, while the other stops carry more of the ground time across the two-week plan.
Ticketing-wise, this is a four-stop economy itinerary priced from $2,539 to $3,324. For travelers looking at a March departure, the sequence is straightforward: one long-haul outbound from Seattle into Southeast Asia, regional moves within the route, then a final leg from Japan back to the US. The overall structure suits travelers who want multiple Asia stops within a compact timeframe rather than spreading the trip across a longer calendar.