Altius recorded 252 priced readings of nonstop business-class round trips from London (LHR) to Houston (IAH) booked 60 days out, across 122 departure dates between 2026-06-06 and 2026-10-05. Observed fares ran from US$4,427 to US$11,815. The lowest fare Altius scored on this window was US$4,622 for a 2026-11-25 departure, seen on 2026-09-26 — STRONG at the time, 17.6% below the US$5,609 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.