This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $89 fare is the cheapest current round-trip from San Diego (SAN) to OAK on Alaska Airlines flight AS2102, departing 2026-09-15 at 09:21 with return on 2026-09-16.

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