Altius recorded 285 priced readings of nonstop business-class round trips from New York (JFK) to Brussels (BRU) booked 30 days out, across 127 departure dates between 2026-05-20 and 2026-10-03. Observed fares ran from US$3,728 to US$13,217. The lowest fare Altius scored on this window was US$3,728 for a 2026-07-28 departure, seen on 2026-06-28 — STRONG at the time, 18.8% below the US$4,591 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.