This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $815 fare is the cheapest current round-trip from Chicago (ORD) to IST on LOT Polish flight LO2, departing 2026-04-28 at 17:10 with return on 2026-05-20.

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