This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $436 fare is the cheapest current round-trip from Tokyo (HND) to NHA on Vietnam Airlines flight VN385, departing 2026-07-22 at 16:35 with return on 2026-07-29.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.