Altius recorded 306 priced readings of nonstop business-class round trips from Atlanta (ATL) to Istanbul (IST) booked 30 days out, across 138 departure dates between 2026-05-20 and 2026-10-05. Observed fares ran from US$5,541 to US$10,591. The lowest fare Altius scored on this window was US$5,691 for a 2026-10-02 departure, seen on 2026-09-02 — DECENT at the time, 11.6% below the US$6,438 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.