Glasgow went on to win 35-17 on the ground of the Welsh Scarlets of Llanelli and qualified for the final of the Rugby Challenge Cup on Saturday.
The Scots scored five tries, all converted by scrum-half George Horne. The Scarlets only scored one try through Steff Evans. The second semi-final opposes Sunday (1:30 p.m.) Toulon to Treviso. The final will take place on May 19 at the Aviva Stadium in Dublin.