Altius recorded 188 priced readings of nonstop business-class round trips from London (LHR) to Thessaloniki (SKG) booked 30 days out, across 92 departure dates between 2026-06-06 and 2026-10-03. Observed fares ran from US$711 to US$3,444. The lowest fare Altius scored on this window was US$711 for a 2026-11-02 departure, seen on 2026-10-03 — RARE at the time, 40.5% below the US$1,195 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.