The mountaineers were said to be suffering from minor injuries and taken to Raigmore Hospital in Inverness. The avalanche happened shortly before 11.30am in the Coire an t-Sneachda, Northern Constabulary said.
Meanwhile, a 57-year-old man was also rescued by helicopter after falling on Ben Lui in the southern Highlands.
The hill-walker managed to contact Central Scotland Police at around 4.20pm and a Royal Navy rescue helicopter from Prestwick was sent to the scene. The man was taken to the Southern General Hospital in Glasgow with head and leg injuries.