"Send him home. He is not wearing a blue suit and red conservative power tie! He must not want to work here"
Think about how stupid that sounds. Do you really think anyone has ever had that conversation at any decent place to work?
Some of this advice is good, and some of it is just gay. For those talking about the preferred colors of suits, who told you that? It's just some stupid aviation old wives tale. Please.............
The suit color can be just about anything. If it is something you would wear to church with your grandmother, and she would not be embrrassed to be seen with you by her friends, then wear it. A solid white suit or something along those lines will be frowned upon, but anything else is acceptable. Just make sure it is a suit. Since it is past labor day, it should be a darker suit.
These losers that go to an interview with the navy suit and 'power tie' all looking the same is just stupid. And they do that because they THINK it is what the company wants pilots to come dressed like. Please show me the source where it says to wear a NAVY suit or your chances for employment will be deminished. Going into an interview dressed like everyone else just shows the potential employer that you do not have the ability to think for yourself and/or you love to listen to rumors.
Shirt: A nice pressed and startched shirt is par for the course. When wearing a suit and tie, NEVER wear a shirt that has visible button down collars. Too casual. You have on a nice business suit then muck it up with a shirt that has a button down collar. Don't do it. Nothing wrong with contrasing collar/cuffs (white collar/cuffs and body of shirt blue for example)
Shoes: Once again, color is irrelevent, just make sure they match. Also, when wearing a suit, NEVER wear loafers. That means, if you do not have to tie them, then you should not be wearing them with a suit. Polished is a given.
A good example of what to wear would be the guys on wall street. They are all very snappy dressers. Not flashy, they just come to work looking great, and this hillbilly stuff will not fly. Or, Brian Williams on NBC News is always well dressed.
When I interview, I wear a black suit and either a white shirt or a charcoal contrasting shirt. Collar and Cuffs are white. Collar is a tab collar (gives you a really clean look) and cuffs are French requiring cuff links. Shoes are black as is the belt (make sure those 2 items match). I've never been to an interview where others were dressed better than I. The HR folks might look at you and woonder why you don't look like everyone else. Gets them curious about you and makes them wonder what you are all about. You'll already have a leg up before you even go in for the sit down.
Good luck.
imp: 
