This question already has an answer here:
I have a friend who currently works at Prestigious Company A, but he is in the process of interviewing for More Prestigious Company B. The interviews are going well, and now Company B wants him to come in for an in-person interview.
The main problem is that Company B is in a totally different part of the country (USA) from Company A. Barring a weekend interview, which I don't think is too likely, the only option is to take vacation days to travel to Company B's location. Company A is probably going to ask why these vacation days are being taken, and my friend doesn't want to lie to them, but he also doesn't want them to know the real reason for the trip, lest there be consequences.
How can my friend attend this in-person interview without tipping off his current employer? Barring that, how could he work out an interview time that wouldn't require the vacation days?