So let me get this straight. You're concerned about an interview within the airline industry, which has seen companies in and out of bankruptcy for the last xyz number of years and what they will think of a less-than-perfect credit score?
Prioritize man.
Personally, I don't do credit checks as a condition of employment. How, when, how much and how often I pay my bills is between me and my creditors...not my employer. Yes, that "disqualifies" me from some jobs, but as someone that's had someone use my social security number inappropriately in the past, it's also a lot less headaches.
-mini