Altius recorded 249 priced readings of nonstop business-class round trips from London (LHR) to Miami (MIA) booked 30 days out, across 121 departure dates between 2026-06-06 and 2026-10-05. Observed fares ran from US$3,637 to US$13,420. The lowest fare Altius scored on this window was US$3,637 for a 2026-09-11 departure, seen on 2026-08-12 — STRONG at the time, 20.9% below the US$4,598 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.