Altius recorded 95 priced readings of nonstop business-class round trips from Paris (CDG) to Houston (IAH) booked 90 days out, across 48 departure dates between 2026-08-19 and 2026-10-05. Observed fares ran from US$4,870 to US$10,125. The lowest fare Altius scored on this window was US$4,870 for a 2026-12-30 departure, seen on 2026-10-01 — STRONG at the time, 17.4% below the US$5,896 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.