Altius recorded 248 priced readings of nonstop business-class round trips from London (LHR) to Singapore (SIN) booked 30 days out, across 121 departure dates between 2026-06-06 and 2026-10-05. Observed fares ran from US$4,637 to US$16,815. The lowest fare Altius scored on this window was US$4,637 for a 2026-10-26 departure, seen on 2026-09-26 — LEGENDARY at the time, 49.6% below the US$9,200 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.