The drive from Pennsylvania to South Dakota will take about 20 hours, depending on where you start your trip, where you end your trip and the route you take.
They share a common border.
5 hours
9 hours
19 hours
5 hours
4 hours
21 hours and 26 minutes
5 and 1/2 hours
Nebraska and South Dakota share a common border, so travel time would be as long as it takes someone to step across the state line.
It takes 8 hours.
It is 1,107.59 miles according to MapQuest.
21 hours
It takes around 3 hours and 15 minutes.