This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $236 fare is the cheapest current round-trip from San Diego (SAN) to BOI on Southwest flight WN4166, departing 2026-07-14 at 08:30 with return on 2026-07-17.

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