Altius recorded 249 priced readings of nonstop business-class round trips from London (LHR) to Basel (BSL) booked 30 days out, across 120 departure dates between 2026-06-06 and 2026-10-04. Observed fares ran from US$368 to US$1,289. The lowest fare Altius scored on this window was US$405 for a 2026-10-29 departure, seen on 2026-09-29 — STRONG at the time, 18.5% below the US$497 this route was typically running that day.
Altius recorded 249 priced readings of nonstop business-class round trips from London (LHR) to Basel (BSL) booked 60 days out, across 120 departure dates between 2026-06-06 and 2026-10-04. Observed fares ran from US$352 to US$1,100. The lowest fare Altius scored on this window was US$352 for a 2026-11-25 departure, seen on 2026-09-26 — IMPRESSIVE at the time, 22.1% below the US$452 this route was typically running that day.
Altius recorded 250 priced readings of nonstop business-class round trips from London (LHR) to Basel (BSL) booked 90 days out, across 120 departure dates between 2026-06-06 and 2026-10-04. Observed fares ran from US$347 to US$641. The lowest fare Altius scored on this window was US$347 for a 2026-09-16 departure, seen on 2026-06-18 — STRONG at the time, 20.8% below the US$438 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.