Altius recorded 247 priced readings of nonstop business-class round trips from London (LHR) to Baltimore (BWI) booked 60 days out, across 120 departure dates between 2026-06-06 and 2026-10-04. Observed fares ran from US$3,667 to US$5,903. The lowest fare Altius scored on this window was US$3,667 for a 2026-11-30 departure, seen on 2026-10-01 — DECENT at the time, 14.1% below the US$4,269 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.