This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $526 fare is the cheapest current round-trip from San Francisco (SFO) to MEX on Frontier flight F93308, departing 2026-06-10 at 15:26 with return on 2026-06-12.

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