It seems like I agree with ExpAB a lot, so I'll put a plug in for the shoes I wear:

http://www.johnstonmurphy.com/catalo...On&PLOID=54504

Good grip, look good, slip on, and the only pair that has been as comfortable as them has been another pair of J&Ms that I have. Running between flights really is a lot more enjoyable with them.

The biggest suggestion I'd have for you, however, would be to go to a local men's (or women's) shoe store (dedicated, not one that's just a minor part of a larger department store) and spend the time to try on shoes, because everybody's foot is different. The shoes that may be God's gift to feet to me may feel like medieval torture devices to others, so simply go in and have an expert take you through all the "easy to get on and off, most comfortable, black, good looking shoes". You may spend $50, you may spend $150, but shoes are incredibly important for both comfort and time reasons (don't want to spend 3 minutes trying to get your shoes on during a 30 minute turn!), so whatever you spend is going to be worth it. I've had mine for quite a few years, and the only reason I ever replace my shoes is because I get them too scuffed up (scratches+gouges=professional!). Check with your airline to make sure you get the exact requirements for your shoes, and once you get them, get as nice as you can.

Oh, and get nice socks too.