This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $664 fare is the cheapest current round-trip from San Jose (SJC) to GUA on Y4 flight Y41823, departing 2026-07-17 at 17:21 with return on 2026-07-19.

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