Charleston cruise question

My son & I are doing a short cruise out of Charleston. The ship returns to Charleston, docking at 8am. We need to then catch a flight to Austin.

How long does disembarkation usually take? Are cabs easy to get at the dock? How long should we allow to make sure we catch our flight? We are looking at flights around 12-1pm. Is that enough time?

Any advice would be greatly appreciated.

That should give you enough time, yea. There are taxis but Uber is very quick in Charleston and half the cost and much nicer.