Back in the day, I ran a big technical shop....and, we had one guy who would not fly. He was limited in what he could do for us....and, we added a question to our employment applications because of our experience with him Do you have any objection to flying on business? A yes answer would throw out the application after that, as that applicant did not meet the requirements of the job. (We sent the one guy to Arizona one time from Buffalo, he took the Bus and it took him almost a week to get there) So, NFL players must fly, or, imho never get a job in the NFL.