This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $879 fare is the cheapest current round-trip from Detroit (DTW) to SAO on Frontier flight F91263, departing 2026-08-14 at 06:10 with return on 2026-08-22.

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