Altius recorded 307 priced readings of nonstop business-class round trips from Dallas (DFW) to Seoul (ICN) booked 90 days out, across 139 departure dates between 2026-05-20 and 2026-10-05. Observed fares ran from US$6,101 to US$12,855. The lowest fare Altius scored on this window was US$6,101 for a 2026-08-24 departure, seen on 2026-05-26 — IMPRESSIVE at the time, 22.8% below the US$7,903 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.