This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $222 fare is the cheapest current round-trip from Philadelphia (PHL) to MKE on Frontier flight F92505, departing 2026-09-12 at 17:57 with return on 2026-09-17.

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