Altius recorded 139 priced readings of nonstop business-class round trips from Edinburgh (EDI) to Washington (IAD) booked 60 days out, across 68 departure dates between 2026-06-06 and 2026-08-17. Observed fares ran from US$5,007 to US$16,996. The lowest fare Altius scored on this window was US$5,556 for a 2026-09-02 departure, seen on 2026-07-04 — LEGENDARY at the time, 49.7% below the US$11,046 this route was typically running that day. Altius has not seen a nonstop business-class round trip on this route since 2026-08-17. The record above is what was observed while fares were being returned. Routes drop out of schedules and come back, so it is worth checking again.
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.