This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $167 fare is the cheapest current round-trip from Houston (IAH) to ONT on Frontier flight F93131, departing 2026-08-20 at 16:21 with return on 2026-08-25.

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