Altius recorded 249 priced readings of nonstop business-class round trips from London (LHR) to Oslo (OSL) booked 60 days out, across 121 departure dates between 2026-06-06 and 2026-10-05. Observed fares ran from US$380 to US$900. The lowest fare Altius scored on this window was US$380 for a 2026-11-24 departure, seen on 2026-09-25 — RARE at the time, 30% below the US$543 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.