Altius recorded 203 priced readings of nonstop business-class round trips from Frankfurt (FRA) to Seattle (SEA) booked 30 days out, across 103 departure dates between 2026-06-21 and 2026-10-03. Observed fares ran from US$3,322 to US$7,469. The lowest fare Altius scored on this window was US$3,322 for a 2026-08-10 departure, seen on 2026-07-11 — IMPRESSIVE at the time, 27.5% below the US$4,582 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.