This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $1043 fare is the cheapest current round-trip from Denver (DEN) to DUB on Frontier flight F9777, departing 2026-06-17 at 22:29 with return on 2026-07-02.

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