Altius recorded 312 priced readings of nonstop business-class round trips from Atlanta (ATL) to Guatemala City (GUA) booked 30 days out, across 138 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$1,081 to US$2,483. The lowest fare Altius scored on this window was US$1,081 for a 2026-07-31 departure, seen on 2026-07-01 — IMPRESSIVE at the time, 24% below the US$1,422 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.