Its actually not that expensive and the airtime would only be a half hour or so. Door to door he could probably do it in an hour, especially if the team has someone pick him up.
Even assuming there isn't some friend of the team that will fly him personally, if he chartered a small plane it would only be something like 5K each way. 10K per week over the season is pretty small clams for a guy that has career earnings already of 55 Million dollars, plus next year's contract will easily be north of 5MM. 200K a season isn't that bad if he ET has invested any reasonable amount of his career earnings (which doesn't include endorsement deals).
I assume you mean 30 minutes each way. Curious what a round trip cost would be every day on a chartered plane. Do you know?
I think what xwalker said would be more realistic - going home once a week. Or maybe his family coming up every weekend or every other weekend.
In any case, it's never been a question that travelling between Austin and Dallas would be less time consuming than Austin to other NFL cities (except Houston), but I still don't think the move to Austin necessarily means he has definite plans to play in Texas. Again, he's from Texas, he lived in Austin 4 years, he bleeds burnt orange, and he worked out in Austin during the off season while playing in Seattle, so I think all moving to Austin conclusively means is he wants his primary residence and permanent home to be in Austin.
