This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $166 fare is the cheapest current round-trip from Chicago (ORD) to NYC on Frontier flight F91596, departing 2026-09-11 at 10:26 with return on 2026-10-21.

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