Depends which website / route finder you look at. On Yahoo it works out as 722 miles, and almost 12 hours of driving.
See route map and directions on Yahoo maps.
I got a different, slightly shorter route on Googlemaps, though. Came out as 680 miles, and only just over 11 hours of driving.
I went for broke and asked another website (see Mapquest route direx), too, who came up with 706 miles and same travel time as Googlemaps. At a glance the Google and Mapquest routes look pretty much the same, but they disagree about total miles. Both faster/shorter than the Yahoo route, though.
See route map and directions on Yahoo maps.
I got a different, slightly shorter route on Googlemaps, though. Came out as 680 miles, and only just over 11 hours of driving.
I went for broke and asked another website (see Mapquest route direx), too, who came up with 706 miles and same travel time as Googlemaps. At a glance the Google and Mapquest routes look pretty much the same, but they disagree about total miles. Both faster/shorter than the Yahoo route, though.