This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $301 fare is the cheapest current round-trip from Chicago (ORD) to SJU on JetBlue flight B6664, departing 2026-09-18 at 06:00 with return on 2026-09-22.

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