Altius recorded 82 priced readings of nonstop business-class round trips from Paris (CDG) to Philadelphia (PHL) booked 60 days out, across 41 departure dates between 2026-08-19 and 2026-10-04. Observed fares ran from US$4,483 to US$17,032. The lowest fare Altius scored on this window was US$4,483 for a 2026-11-17 departure, seen on 2026-09-18 — LEGENDARY at the time, 59.6% below the US$11,097 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.