Business class to Singapore was cheapest at 90 days out in November 2026, with 1 of 5 reaching LEGENDARY. Altius monitored 5 nonstop routes from 5 gateways, and the deepest fare was $4,411 to Singapore departing 2026-11-06. Coverage is partial: 18 of 30 departure dates observed.

Business class to Singapore was cheapest at 90 days out in October 2026, with 1 of 8 reaching LEGENDARY. Altius monitored 8 nonstop routes from 8 gateways, and the deepest fare was $3,743 to Singapore departing 2026-10-06.

Business class to Singapore was cheapest at 60 days out in September 2026, with 1 of 6 reaching RARE. Altius monitored 6 nonstop routes from 6 gateways, and the deepest fare was $5,067 to Singapore departing 2026-09-30.

Business class to Singapore was cheapest at 30 days out in August 2026, with 1 of 5 reaching LEGENDARY. Altius monitored 5 nonstop routes from 5 gateways, and the deepest fare was $3,731 to Singapore departing 2026-08-03.

Business class to Singapore was cheapest at 30 days out in July 2026, with 1 of 4 reaching IMPRESSIVE. Altius monitored 4 nonstop routes from 4 gateways, and the deepest fare was $5,777 to Singapore departing 2026-07-16. Coverage is partial: 30 of 31 departure dates observed.

Altius monitored 1 nonstop route from 1 gateway to Singapore for June 2026 departures and recorded no fare below that route's typical. Coverage is partial: 12 of 30 departure dates observed.