This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $653 fare is the cheapest current round-trip from Newark (EWR) to WAW on Austrian flight OS38, departing 2026-05-19 at 17:40 with return on 2026-06-19.

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