This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $311 fare is the cheapest current round-trip from Tokyo (HND) to HKG on UO flight UO623, departing 2026-06-29 at 01:00 with return on 2026-07-13.

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