This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $99 fare is the cheapest current round-trip from San Diego (SAN) to SJC on Alaska Airlines flight AS2118, departing 2026-08-29 at 16:35 with return on 2026-08-30.

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