Altius recorded 250 priced readings of nonstop business-class round trips from London (LHR) to Boston (BOS) booked 60 days out, across 122 departure dates between 2026-06-06 and 2026-10-05. Observed fares ran from US$3,445 to US$6,517. Every fare Altius recorded for trips booked 60 days out stayed close enough to what this route typically costs that none was flagged.