This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $512 fare is the cheapest current round-trip from Boston (BOS) to SAO on Copa flight CM705, departing 2026-06-10 at 16:00 with return on 2026-06-23.

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