This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $145 fare is the cheapest current round-trip from Phoenix (PHX) to DTT on Frontier flight F92142, departing 2026-09-17 at 15:21 with return on 2026-09-21.

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