Altius recorded 277 priced readings of nonstop business-class round trips from Newark (EWR) to Istanbul (IST) booked 30 days out, across 125 departure dates between 2026-05-20 and 2026-10-05. Observed fares ran from US$4,651 to US$10,501. The lowest fare Altius scored on this window was US$4,651 for a 2026-10-28 departure, seen on 2026-09-28 — RARE at the time, 37.2% below the US$7,406 this route was typically running that day.
A fare can move between our two readings of the same day, most often on the days furthest below typical. Where a day's two readings differ enough to matter, the chart marks that day and both readings can be read separately.