Altius recorded 91 priced readings of nonstop business-class round trips from Paris (CDG) to Seattle (SEA) booked 30 days out, across 46 departure dates between 2026-08-19 and 2026-10-04. Observed fares ran from US$5,190 to US$15,111. The lowest fare Altius scored on this window was US$5,190 for a 2026-10-15 departure, seen on 2026-09-15 — IMPRESSIVE at the time, 24.5% below the US$6,874 this route was typically running that day.
Altius recorded 87 priced readings of nonstop business-class round trips from Paris (CDG) to Seattle (SEA) booked 60 days out, across 44 departure dates between 2026-08-19 and 2026-10-04. Observed fares ran from US$5,216 to US$12,239. The lowest fare Altius scored on this window was US$5,216 for a 2026-11-10 departure, seen on 2026-09-11 — STRONG at the time, 21.2% below the US$6,619 this route was typically running that day.
Altius recorded 88 priced readings of nonstop business-class round trips from Paris (CDG) to Seattle (SEA) booked 90 days out, across 44 departure dates between 2026-08-19 and 2026-10-04. Observed fares ran from US$5,209 to US$12,382. The lowest fare Altius scored on this window was US$5,209 for a 2026-12-01 departure, seen on 2026-09-02 — RARE at the time, 32.1% below the US$7,672 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.