Altius recorded 202 priced readings of nonstop business-class round trips from Frankfurt (FRA) to Seoul (ICN) booked 30 days out, across 103 departure dates between 2026-06-21 and 2026-10-05. Observed fares ran from US$2,866 to US$12,865. The lowest fare Altius scored on this window was US$2,866 for a 2026-09-15 departure, seen on 2026-08-16 — STRONG at the time, 20.8% below the US$3,619 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.