This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $318 fare is the cheapest current round-trip from Portland (PDX) to HOU on Frontier flight F91106, departing 2026-07-02 at 18:19 with return on 2026-07-07.

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