Is there a physical port for headphones on IPhone 13

There is no traditional 3.5mm (⅛”) jack, but you could use Lightning earbuds or traditional earbuds via a Lightning to ⅛” jack adapter.

There is no integrated 3.5 mm analog audio port. There are three common ways to connect headphones to an iPhone 13: Lightning to 3.5 mm analog dongle, via Lightning-connected headphones (rare), and via Bluetooth.