Helping newbies in the industry pay off student loans is a common concept in medicine and the law. The multimillion dollar organization, of which I am a board member, offers to partially defray these loans for new law graduates who accept a job with us. Historically, people did not want to do this type of law, so we have had to think of incentives to attract the best and the brightest. This is just one way. Jobs in legal aid never did and still do not pay well, but we have to do what is necessary to keep ourselves staffed with competent and passionate people. And by the way, we do not ask that in exchange for help with loans that the person work for us for x number of years. Life is what it is and everyone has needs and priorities that change over time.
I can imagine a similar program to work for the airlines. Management could be persuaded if a net "lower cost" for them can be demonstrated, or even just plain efficiency and efficacy.