Altius recorded 143 priced readings of nonstop business-class round trips from Frankfurt (FRA) to Philadelphia (PHL) booked 30 days out, across 72 departure dates between 2026-06-21 and 2026-10-04. Observed fares ran from US$4,171 to US$7,762. 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 112 priced readings of nonstop business-class round trips from Frankfurt (FRA) to Philadelphia (PHL) booked 60 days out, across 57 departure dates between 2026-06-21 and 2026-10-04. Observed fares ran from US$3,187 to US$4,944. The lowest fare Altius scored on this window was US$3,275 for a 2026-12-01 departure, seen on 2026-10-02 — DECENT at the time, 12.2% below the US$3,730 this route was typically running that day.
Altius recorded 78 priced readings of nonstop business-class round trips from Frankfurt (FRA) to Philadelphia (PHL) booked 90 days out, across 39 departure dates between 2026-06-22 and 2026-09-16. Observed fares ran from US$3,221 to US$4,945. The lowest fare Altius scored on this window was US$3,221 for a 2026-12-15 departure, seen on 2026-09-16 — DECENT at the time, 13% below the US$3,702 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.