This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $161 fare is the cheapest current round-trip from Chicago (ORD) to SJU on Frontier flight F93346, departing 2026-08-16 at 00:44 with return on 2026-08-24.

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