This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $415 fare is the cheapest current round-trip from Detroit (DTW) to DEN on Frontier flight F91263, departing 2026-06-13 at 06:10 with return on 2026-06-15.

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