Refer to MythBusters episode 221, "Traffic Tricks.": https://mythresults.com/traffic-tricks

For journeys shorter than 400 miles, driving is faster than flying. PLAUSIBLE

The Build Team had a race of 380 miles (610 km) from San Francisco to Los Angeles, between Tory on a plane, and Kari and Grant driving. The bottlenecks of air travel (arriving early to get through security, waiting for the plane to start boarding, retrieving luggage at the destination, and renting a car) delayed Tory significantly. Kari and Grant had fewer such delays, but did have to stop for gas and food at one point, and traffic in and near the larger cities did slow them down. Kari and Grant arrived at their destination after 5h 33m; Tory was slightly faster, at 5h 25m. Because of the close result and variables that could alter the result either way, this myth was declared plausible.

I don’t disagree it could be quicker, city to city, but this was airport to airport. That would eliminate the drive to the airport for the person flying.