Business class to Belgium was cheapest at 90 days out in November 2026, with 1 of 5 reaching IMPRESSIVE. Altius monitored 5 nonstop routes from 5 gateways, and the deepest fare was $5,521 to Brussels departing 2026-11-11. Coverage is partial: 18 of 30 departure dates observed.

Business class to Belgium was cheapest at 90 days out in October 2026, with 1 of 5 reaching RARE. Altius monitored 5 nonstop routes from 5 gateways, and the deepest fare was $5,300 to Brussels departing 2026-10-28.

Business class to Belgium was cheapest at 60 days out in September 2026, with 4 of 5 reaching STRONG. Altius monitored 5 nonstop routes from 5 gateways, and the deepest fare was $3,954 to Brussels departing 2026-09-01.

Business class to Belgium was cheapest at 60 days out in August 2026, with 1 of 5 reaching LEGENDARY. Altius monitored 5 nonstop routes from 5 gateways, and the deepest fare was $3,886 to Brussels departing 2026-08-25.

Business class to Belgium was cheapest at 60 days out in July 2026, with 1 of 5 reaching IMPRESSIVE. Altius monitored 5 nonstop routes from 5 gateways, and the deepest fare was $4,102 to Brussels departing 2026-07-28.

Altius monitored 4 nonstop routes from 4 gateways to Belgium for June 2026 departures and recorded no fare below those routes' typical fares. Coverage is partial: 12 of 30 departure dates observed.