This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $299 fare is the cheapest current round-trip from Cancun (CUN) to SAT on Sun Country flight SY520, departing 2026-05-29 at 14:30 with return on 2026-05-31.

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