Business class to South Korea was cheapest at 90 days out in November 2026, with 2 of 13 reaching RARE. Altius monitored 13 nonstop routes from 13 gateways, and the deepest fare was $4,412 to Seoul departing 2026-11-06. Coverage is partial: 18 of 30 departure dates observed.

Business class to South Korea was cheapest at 90 days out in October 2026, with 2 of 13 reaching RARE. Altius monitored 13 nonstop routes from 13 gateways, and the deepest fare was $4,359 to Seoul departing 2026-10-13.

Business class to South Korea was cheapest at 90 days out in September 2026, with 1 of 12 reaching LEGENDARY. Altius monitored 12 nonstop routes from 12 gateways, and the deepest fare was $6,851 to Seoul departing 2026-09-22.

Business class to South Korea was cheapest at 90 days out in August 2026, with 5 of 10 reaching RARE. Altius monitored 10 nonstop routes from 10 gateways, and the deepest fare was $6,851 to Seoul departing 2026-08-25.

Business class to South Korea was cheapest at 30 days out in July 2026, with 3 of 10 reaching IMPRESSIVE. Altius monitored 10 nonstop routes from 10 gateways, and the deepest fare was $6,852 to Seoul departing 2026-07-29.

Altius monitored 8 nonstop routes from 8 gateways to South Korea for June 2026 departures and recorded no fare below those routes' typical fares. Coverage is partial: 12 of 30 departure dates observed.