Altius recorded 189 priced readings of nonstop business-class round trips from Frankfurt (FRA) to Seattle (SEA) booked 60 days out, across 95 departure dates between 2026-06-21 and 2026-10-04. Observed fares ran from US$3,328 to US$6,550. The lowest fare Altius scored on this window was US$3,338 for a 2026-11-16 departure, seen on 2026-09-17 — IMPRESSIVE at the time, 29.1% below the US$4,708 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.