Domestic Flights
Vietnam Airlines, VietJet, Bamboo Airways. Hanoi ↔ Đà Nẵng ~45 €, Đà Nẵng ↔ Ho Chi Minh City ~40 €. Book 2-3 weeks in advance.
Train
Hanoi → Huế (~14h) or → Ho Chi Minh City (~32h). Comfortable in soft seat couchette. Book on dsvn.vn or 12go.asia.
Bus / Open Tour
Economical but time-consuming. Sleeper bus Hanoi → Hội An ~16h, 15-25 €.
In the City
Grab (car or motorbike) is reliable and affordable. Avoid unofficial taxis.