This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $145 fare is the cheapest current round-trip from Bangkok (BKK) to SGN on FD flight FD654, departing 2026-08-12 at 13:40 with return on 2026-09-23.

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