Altius recorded 243 priced readings of nonstop business-class round trips from Edinburgh (EDI) to Istanbul (IST) booked 30 days out, across 118 departure dates between 2026-06-06 and 2026-10-05. Observed fares ran from US$1,140 to US$2,530. The lowest fare Altius scored on this window was US$1,140 for a 2026-10-15 departure, seen on 2026-09-15 — IMPRESSIVE at the time, 27.8% below the US$1,579 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.