According to TMZ, the 28-year-old reality star hopped in his Bentley and drove the 19 plus hours all the way from Los Angeles.
Chyna was arrested for public intoxication on Friday (January 29) at the Austin International Airport.
Rob was reportedly in Austin less than 24 hours later.
Shortly after she was taken into custody, Rob posted a photo of himself Facetiming Chyna.
His family is apparently concerned about his recent actions.
Did Rob Kardashian Drive to Austin to Get Blac Chyna?
Source: Just Jared