Altius recorded 310 priced readings of nonstop business-class round trips from New York (JFK) to Istanbul (IST) booked 90 days out, across 139 departure dates between 2026-05-20 and 2026-10-05. Observed fares ran from US$4,591 to US$7,201. Every fare Altius recorded for trips booked 90 days out stayed close enough to what this route typically costs that none was flagged.