This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $653 fare is the cheapest current round-trip from Seoul (ICN) to CIT on ZE flight ZE135, departing 2026-06-06 at 19:25 with return on 2026-06-14.

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