This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $369 fare is the cheapest current round-trip from Detroit (DTW) to SAN on Frontier flight F93565, departing 2026-07-04 at 13:31 with return on 2026-07-10.

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