Switzerland enjoyed much of the attacking momentum and equalized in the 67th minute through Dan Ndoye after Argentina had taken the lead.
Five minutes later, Breel Embolo was shown his second yellow card for simulation, reducing Switzerland to ten men.
Argentina capitalized on their numerical advantage in extra time.
Lautaro Martínez scored in the 120th minute following a swift counterattack, putting the result beyond doubt and sealing a 3-1 victory for the Albiceleste.
The win sets up a highly anticipated semi-final clash against England.
