This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $423 fare is the cheapest current round-trip from Montego Bay (MBJ) to CHI on Frontier flight F9124, departing 2026-07-30 at 13:32 with return on 2026-09-04.

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