Route notes
Why this routing works
This routing is built as an open-jaw in Southeast Asia, starting with a flight from San Diego to Hanoi and resuming from Chiang Mai after the overland segment. That structure works well when you do not need to fly every leg, while keeping the long-haul and onward international sectors on one ticketed plan.
After Chiang Mai, the itinerary reconnects by air through Bangkok, then continues to Tokyo before returning to San Diego. Sequencing the trip this way keeps the overland portion in the middle and uses Bangkok as the connection point for the move north to Japan.
At 4 weeks, the pacing supports a short stay in Hanoi, an overland transition into northern Thailand, and two additional flight sectors before the transpacific return. In business class, this sample route was sold in the USD 4,958 to USD 7,563 range, with October departure timing falling in the October to December season window.