As far as I'm concerned, when I say it I mean "Please God, let the flight arrive safely." So I'll take every "have a safe flight" I can get. I really have a deep-seated fear of flying. I just am able to push it way down in my consciousness... unless there is turbulence. Then I silently cry if it lasts too long. A drink and/or a Xanax really helps me! 🙂