This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $520 fare is the cheapest current round-trip from San Francisco (SFO) to CAN on Asiana flight OZ211, departing 2026-08-19 at 23:20 with return on 2026-09-03.

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