This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $540 fare is the cheapest current round-trip from Hong Kong (HKG) to USM on Thai flight TG601, departing 2026-08-21 at 12:55 with return on 2026-08-30.

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