Altius recorded 310 priced readings of nonstop business-class round trips from Atlanta (ATL) to Rome (FCO) booked 30 days out, across 137 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$4,201 to US$17,127. The lowest fare Altius scored on this window was US$4,201 for a 2026-08-29 departure, seen on 2026-07-30 — IMPRESSIVE at the time, 28.2% below the US$5,851 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.