This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $858 fare is the cheapest current round-trip from Seattle (SEA) to TYO on Cathay Pacific flight CX853, departing 2026-08-25 at 12:25 with return on 2026-09-08.

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