From the “main” thread…
As a NJ resident who spent a year going to school in Pittsburgh, I can tell you that it’s about an easy a 6 hours as you can find. From King of Prussia to the Pittsburgh exit on the PA Turnpike is 270 miles of usually clear sailing. By the time you check in, wait, fly, get your bags, and get to your destination…I prefer to drive to Pittsburgh from Philly vs. flying.