This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $171 fare is the cheapest current round-trip from Houston (IAH) to PHL on Frontier flight F94106, departing 2026-07-29 at 20:02 with return on 2026-08-05.

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