Completely understand, but I don't think that is a unique problem to ISU. Most P5 schools in the midwest (B1G and B12) are recruiting heavily from states like Florida and Texas, so they also have to deal with this. Most of them are not located near hub airports, so they also deal with expensive, indirect flights. And most of them are far enough from airports that they have to deal with ground transportation as well. Looking at the schools I listed as examples in my post, I don't think any of them have a significant airport advantage on us for recruiting. I could certainly expand that list to schools like Nebby, Mizzou, Illinois, Wisconsin. Hell, OU is 35 minutes away from the OKC airport.
I do see this as an advantage at places like the Texas schools, where 95% of their recruiting class is in state and the player and family can just drive to campus for a visit. But outside of states like California, Texas, and Florida, this is going to be an issue for tons of schools. It really shouldn't even be brought up as an excuse for ISU.