Altius recorded 305 priced readings of nonstop business-class round trips from Washington (IAD) to Amsterdam (AMS) booked 30 days out, across 137 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$3,757 to US$9,292. The lowest fare Altius scored on this window was US$3,757 for a 2026-08-04 departure, seen on 2026-07-05 — DECENT at the time, 14.6% below the US$4,399 this route was typically running that day.
Altius recorded 307 priced readings of nonstop business-class round trips from Washington (IAD) to Amsterdam (AMS) booked 60 days out, across 137 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$3,757 to US$9,129. The lowest fare Altius scored on this window was US$3,757 for a 2026-09-01 departure, seen on 2026-07-03 — STRONG at the time, 19.2% below the US$4,650 this route was typically running that day.
Altius recorded 307 priced readings of nonstop business-class round trips from Washington (IAD) to Amsterdam (AMS) booked 90 days out, across 138 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$3,550 to US$6,742. The lowest fare Altius scored on this window was US$3,550 for a 2026-10-22 departure, seen on 2026-07-24 — STRONG at the time, 19.4% below the US$4,404 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.