Altius recorded 212 priced readings of nonstop business-class round trips from Frankfurt (FRA) to Washington (IAD) booked 60 days out, across 107 departure dates between 2026-06-21 and 2026-10-05. Observed fares ran from US$3,812 to US$4,990. The lowest fare Altius scored on this window was US$3,812 for a 2026-11-22 departure, seen on 2026-09-23 — STRONG at the time, 16.1% below the US$4,544 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.