This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $616 fare is the cheapest current round-trip from Atlanta (ATL) to CPH on Frontier flight F91242, departing 2026-08-20 at 05:01 with return on 2026-09-01.

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