This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $743 fare is the cheapest current round-trip from Sapporo (CTS) to USM on GK flight GK120, departing 2026-09-01 at 20:50 with return on 2026-09-20.

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