Altius recorded 282 priced readings of nonstop business-class round trips from Miami (MIA) to Buenos Aires (EZE) booked 30 days out, across 124 departure dates between 2026-05-20 and 2026-09-23. Observed fares ran from US$3,426 to US$13,873. Every fare Altius recorded for trips booked 30 days out stayed close enough to what this route typically costs that none was flagged.
Altius recorded 306 priced readings of nonstop business-class round trips from Miami (MIA) to Buenos Aires (EZE) booked 60 days out, across 135 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$2,980 to US$5,117. The lowest fare Altius scored on this window was US$2,980 for a 2026-08-11 departure, seen on 2026-06-12 — DECENT at the time, 13% below the US$3,425 this route was typically running that day.
Altius recorded 310 priced readings of nonstop business-class round trips from Miami (MIA) to Buenos Aires (EZE) booked 90 days out, across 137 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$2,799 to US$4,461. The lowest fare Altius scored on this window was US$2,799 for a 2026-09-02 departure, seen on 2026-06-04 — STRONG at the time, 18.3% below the US$3,426 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.