Table 3 (in-state list prices) and Table 4 (net prices for in-state full Pell grant students) rank flagship universities from low to high cost. No surprised the the ones in Pennsylvania are near the bottom (most expensive) on both lists. Forum favorite University of Alabama is in last place in Table 4.
Table 5 ranks flagship universities by percentage of out-of-state frosh from high to low. Those with over 50% out-of-state students do not appear to include any of the more selective ones. However, some more selective ones like Georgia Tech and Michigan are over 40% out-of-state.