Altius recorded 304 priced readings of nonstop business-class round trips from San Francisco (SFO) to Seoul (ICN) booked 90 days out, across 138 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$6,103 to US$10,160. Every fare Altius recorded for trips booked 90 days out stayed close enough to what this route typically costs that none was flagged.