This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $337 fare is the cheapest current round-trip from Los Cabos (SJD) to ONT on Y4 flight Y41143, departing 2026-08-18 at 15:36 with return on 2026-08-26.

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